38777878875 has 16 divisors (see below), whose sum is σ = 64526391072. Its totient is φ = 20681535200.

The previous prime is 38777878847. The next prime is 38777878877. The reversal of 38777878875 is 57887877783.

It is not a de Polignac number, because 38777878875 - 2¹⁰ = 38777877851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a junction number, because it is equal to n+sod(n) for n = 38777878797 and 38777878806.

It is not an unprimeable number, because it can be changed into a prime (38777878877) 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, 51703464 + ... + 51704213.

It is an arithmetic number, because the mean of its divisors is an integer number (4032899442).

Almost surely, 2^38777878875 is an apocalyptic number.

38777878875 is a deficient number, since it is larger than the sum of its proper divisors (25748512197).

38777878875 is a wasteful number, since it uses less digits than its factorization.

38777878875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103407695 (or 103407685 counting only the distinct ones).

The product of its digits is 1032622080, while the sum is 75.

The spelling of 38777878875 in words is "thirty-eight billion, seven hundred seventy-seven million, eight hundred seventy-eight thousand, eight hundred seventy-five".