139788172544 has 36 divisors (see below), whose sum is σ = 281227451904. Its totient is φ = 69343723008.

The previous prime is 139788172499. The next prime is 139788172547. The reversal of 139788172544 is 445271887931.

It is a happy number.

139788172544 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139788172544² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139788172547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117282 + ... + 2182305.

It is an arithmetic number, because the mean of its divisors is an integer number (7811873664).

Almost surely, 2^139788172544 is an apocalyptic number.

It is an amenable number.

139788172544 is an abundant number, since it is smaller than the sum of its proper divisors (141439279360).

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

139788172544 is an equidigital number, since it uses as much as digits as its factorization.

139788172544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4299730 (or 4299716 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 59.

The spelling of 139788172544 in words is "one hundred thirty-nine billion, seven hundred eighty-eight million, one hundred seventy-two thousand, five hundred forty-four".