38707851457 has 4 divisors (see below), whose sum is σ = 42226747056. Its totient is φ = 35188955860.

The previous prime is 38707851421. The next prime is 38707851467. The reversal of 38707851457 is 75415870783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38707851457 - 2²³ = 38699462849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38707851398 and 38707851407.

It is not an unprimeable number, because it can be changed into a prime (38707851467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759447783 + ... + 1759447804.

It is an arithmetic number, because the mean of its divisors is an integer number (10556686764).

Almost surely, 2^38707851457 is an apocalyptic number.

It is an amenable number.

38707851457 is a deficient number, since it is larger than the sum of its proper divisors (3518895599).

38707851457 is a wasteful number, since it uses less digits than its factorization.

38707851457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518895598.

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 38707851457 in words is "thirty-eight billion, seven hundred seven million, eight hundred fifty-one thousand, four hundred fifty-seven".