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378440969375 = 54786500793
BaseRepresentation
bin1011000000111001101…
…01101110110010011111
31100011211012110010210002
411200130311232302133
522200021342010000
6445504155204515
736225056110220
oct5403465566237
91304735403702
10378440969375
11136550074617
126141714673b
13298c0c737a1
1414460c0d247
159c9dd728d5
hex581cd6ec9f

378440969375 has 20 divisors (see below), whose sum is σ = 540456960912. Its totient is φ = 259502376000.

The previous prime is 378440969341. The next prime is 378440969419. The reversal of 378440969375 is 573969044873.

It is not a de Polignac number, because 378440969375 - 210 = 378440968351 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43246022 + ... + 43254771.

Almost surely, 2378440969375 is an apocalyptic number.

378440969375 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

378440969375 is a deficient number, since it is larger than the sum of its proper divisors (162015991537).

378440969375 is an frugal number, since it uses more digits than its factorization.

378440969375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86500820 (or 86500805 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 65.

The spelling of 378440969375 in words is "three hundred seventy-eight billion, four hundred forty million, nine hundred sixty-nine thousand, three hundred seventy-five".

Divisors: 1 5 7 25 35 125 175 625 875 4375 86500793 432503965 605505551 2162519825 3027527755 10812599125 15137638775 54062995625 75688193875 378440969375