36401388752978 has 8 divisors (see below), whose sum is σ = 54620461490160. Its totient is φ = 18194568256260.

The previous prime is 36401388752881. The next prime is 36401388753053. The reversal of 36401388752978 is 87925788310463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×36401388752978² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3063052688 + ... + 3063064571.

It is an arithmetic number, because the mean of its divisors is an integer number (6827557686270).

It is a 1-persistent number, because it is pandigital, but 2⋅36401388752978 = 72802777505956 is not.

Almost surely, 2^{36401388752978} is an apocalyptic number.

36401388752978 is a deficient number, since it is larger than the sum of its proper divisors (18219072737182).

36401388752978 is a wasteful number, since it uses less digits than its factorization.

36401388752978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126120232.

The product of its (nonzero) digits is 487710720, while the sum is 71.

The spelling of 36401388752978 in words is "thirty-six trillion, four hundred one billion, three hundred eighty-eight million, seven hundred fifty-two thousand, nine hundred seventy-eight".