38777387880 has 576 divisors, whose sum is σ = 151382770560. Its totient is φ = 7778073600.

The previous prime is 38777387851. The next prime is 38777387939. The reversal of 38777387880 is 8878377783.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 97675842 + ... + 97676238.

It is an arithmetic number, because the mean of its divisors is an integer number (262817310).

Almost surely, 2^38777387880 is an apocalyptic number.

38777387880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38777387880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75691385280).

38777387880 is an abundant number, since it is smaller than the sum of its proper divisors (112605382680).

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

38777387880 is a wasteful number, since it uses less digits than its factorization.

38777387880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 88510464, while the sum is 66.

The spelling of 38777387880 in words is "thirty-eight billion, seven hundred seventy-seven million, three hundred eighty-seven thousand, eight hundred eighty".