157640745519 has 12 divisors (see below), whose sum is σ = 227723922400. Its totient is φ = 105084311904.

The previous prime is 157640745503. The next prime is 157640745547. The reversal of 157640745519 is 915547046751.

157640745519 is a `hidden beast` number, since 1 + 57 + 6 + 4 + 0 + 74 + 5 + 519 = 666.

157640745519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157640745519 - 2⁴ = 157640745503 is a prime.

It is a super-2 number, since 2×157640745519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157640745919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687574 + ... + 887715.

Almost surely, 2^157640745519 is an apocalyptic number.

157640745519 is a deficient number, since it is larger than the sum of its proper divisors (70083176881).

157640745519 is a wasteful number, since it uses less digits than its factorization.

157640745519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586414 (or 1586411 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 157640745519 in words is "one hundred fifty-seven billion, six hundred forty million, seven hundred forty-five thousand, five hundred nineteen".