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6425136684 = 2232178476019
BaseRepresentation
bin1011111101111011…
…11100111000101100
3121120210000202120100
411332331330320230
5101124313333214
62541320551100
7315135521631
oct57675747054
917523022510
106425136684
1127a790531a
1212b3922490
137b519b835
1444d478188
15279114309
hex17ef7ce2c

6425136684 has 18 divisors (see below), whose sum is σ = 16241317820. Its totient is φ = 2141712216.

The previous prime is 6425136661. The next prime is 6425136703. The reversal of 6425136684 is 4866315246.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89237974 + ... + 89238045.

Almost surely, 26425136684 is an apocalyptic number.

It is an amenable number.

6425136684 is an abundant number, since it is smaller than the sum of its proper divisors (9816181136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6425136684 is a wasteful number, since it uses less digits than its factorization.

6425136684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178476029 (or 178476024 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 6425136684 is about 80156.9503162390. The cubic root of 6425136684 is about 1859.0630695729.

The spelling of 6425136684 in words is "six billion, four hundred twenty-five million, one hundred thirty-six thousand, six hundred eighty-four".