19359900452940 has 48 divisors (see below), whose sum is σ = 54207930980448. Its totient is φ = 5162620148224.

The previous prime is 19359900452939. The next prime is 19359900452941. The reversal of 19359900452940 is 4925400995391.

It is an interprime number because it is at equal distance from previous prime (19359900452939) and next prime (19359900452941).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (19359900452941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21489394 + ... + 22372166.

It is an arithmetic number, because the mean of its divisors is an integer number (1129331895426).

Almost surely, 2^{19359900452940} is an apocalyptic number.

19359900452940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19359900452940 is an abundant number, since it is smaller than the sum of its proper divisors (34848030527508).

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

19359900452940 is a wasteful number, since it uses less digits than its factorization.

19359900452940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248298 (or 1248296 counting only the distinct ones).

The product of its (nonzero) digits is 15746400, while the sum is 60.

The spelling of 19359900452940 in words is "nineteen trillion, three hundred fifty-nine billion, nine hundred million, four hundred fifty-two thousand, nine hundred forty".