13781390239472 has 40 divisors (see below), whose sum is σ = 27170134568544. Its totient is φ = 6770460432384.

The previous prime is 13781390239469. The next prime is 13781390239483. The reversal of 13781390239472 is 27493209318731.

It is a super-2 number, since 2×13781390239472² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22124633 + ... + 22739000.

Almost surely, 2^{13781390239472} is an apocalyptic number.

It is an amenable number.

13781390239472 is a deficient number, since it is larger than the sum of its proper divisors (13388744329072).

13781390239472 is a wasteful number, since it uses less digits than its factorization.

13781390239472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44863977 (or 44863971 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 13781390239472 in words is "thirteen trillion, seven hundred eighty-one billion, three hundred ninety million, two hundred thirty-nine thousand, four hundred seventy-two".