369887777856 has 105 divisors (see below), whose sum is σ = 1096593069319. Its totient is φ = 123281329536.

The previous prime is 369887777851. The next prime is 369887777933. The reversal of 369887777856 is 658777788963.

The square root of 369887777856 is 608184.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (369887777851) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 43785025 + ... + 43793471.

Almost surely, 2^369887777856 is an apocalyptic number.

369887777856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

369887777856 is the 608184-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 369887777856

369887777856 is an abundant number, since it is smaller than the sum of its proper divisors (726705291463).

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

369887777856 is an frugal number, since it uses more digits than its factorization.

369887777856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16918 (or 8452 counting only the distinct ones).

The product of its digits is 5974456320, while the sum is 81.

Multiplying 369887777856 by its sum of digits (81), we get a square (29960910006336 = 5473656²).

369887777856 divided by its sum of digits (81) gives a square (4566515776 = 67576²).

The spelling of 369887777856 in words is "three hundred sixty-nine billion, eight hundred eighty-seven million, seven hundred seventy-seven thousand, eight hundred fifty-six".