38755512780 has 24 divisors (see below), whose sum is σ = 108515435952. Its totient is φ = 10334803392.

The previous prime is 38755512749. The next prime is 38755512847. The reversal of 38755512780 is 8721555783.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322962547 + ... + 322962666.

It is an arithmetic number, because the mean of its divisors is an integer number (4521476498).

Almost surely, 2^38755512780 is an apocalyptic number.

38755512780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38755512780 is an abundant number, since it is smaller than the sum of its proper divisors (69759923172).

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

38755512780 is a wasteful number, since it uses less digits than its factorization.

38755512780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645925225 (or 645925223 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 51.

The spelling of 38755512780 in words is "thirty-eight billion, seven hundred fifty-five million, five hundred twelve thousand, seven hundred eighty".