15749340146940 has 48 divisors (see below), whose sum is σ = 44140595466240. Its totient is φ = 4195781843520.

The previous prime is 15749340146927. The next prime is 15749340146941. The reversal of 15749340146940 is 4964104394751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15749340146941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126255756 + ... + 126380435.

It is an arithmetic number, because the mean of its divisors is an integer number (919595738880).

Almost surely, 2^{15749340146940} is an apocalyptic number.

15749340146940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15749340146940 is an abundant number, since it is smaller than the sum of its proper divisors (28391255319300).

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

15749340146940 is a wasteful number, since it uses less digits than its factorization.

15749340146940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252637242 (or 252637240 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 15749340146940 in words is "fifteen trillion, seven hundred forty-nine billion, three hundred forty million, one hundred forty-six thousand, nine hundred forty".