38157887455 has 32 divisors (see below), whose sum is σ = 50631619968. Its totient is φ = 27459379200.

The previous prime is 38157887441. The next prime is 38157887459. The reversal of 38157887455 is 55478875183.

It is a happy number.

It is not a de Polignac number, because 38157887455 - 2³³ = 29567952863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38157887393 and 38157887402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38157887459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2653585 + ... + 2667925.

It is an arithmetic number, because the mean of its divisors is an integer number (1582238124).

Almost surely, 2^38157887455 is an apocalyptic number.

38157887455 is a deficient number, since it is larger than the sum of its proper divisors (12473732513).

38157887455 is a wasteful number, since it uses less digits than its factorization.

38157887455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15747.

The product of its digits is 37632000, while the sum is 61.

The spelling of 38157887455 in words is "thirty-eight billion, one hundred fifty-seven million, eight hundred eighty-seven thousand, four hundred fifty-five".