38401377387572 has 12 divisors (see below), whose sum is σ = 67203167723076. Its totient is φ = 19200472323840.

The previous prime is 38401377387539. The next prime is 38401377387613. The reversal of 38401377387572 is 27578377310483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35502101556496 + 2899275831076 = 5958364^2 + 1702726^2 .

It is a super-3 number, since 3×38401377387572³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 38401377387499 and 38401377387508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53692829 + ... + 54403332.

It is an arithmetic number, because the mean of its divisors is an integer number (5600263976923).

Almost surely, 2^{38401377387572} is an apocalyptic number.

It is an amenable number.

38401377387572 is a deficient number, since it is larger than the sum of its proper divisors (28801790335504).

38401377387572 is a wasteful number, since it uses less digits than its factorization.

38401377387572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108184978 (or 108184976 counting only the distinct ones).

The product of its (nonzero) digits is 165957120, while the sum is 65.

The spelling of 38401377387572 in words is "thirty-eight trillion, four hundred one billion, three hundred seventy-seven million, three hundred eighty-seven thousand, five hundred seventy-two".