139578374881 has 8 divisors (see below), whose sum is σ = 152321947200. Its totient is φ = 126843907440.

The previous prime is 139578374743. The next prime is 139578374899. The reversal of 139578374881 is 188473875931.

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

It is a cyclic number.

It is not a de Polignac number, because 139578374881 - 2¹⁷ = 139578243809 is a prime.

It is a super-2 number, since 2×139578374881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139578372881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244141 + ... + 2305498.

It is an arithmetic number, because the mean of its divisors is an integer number (19040243400).

Almost surely, 2^139578374881 is an apocalyptic number.

139578374881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

139578374881 is a deficient number, since it is larger than the sum of its proper divisors (12743572319).

139578374881 is a wasteful number, since it uses less digits than its factorization.

139578374881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552439.

The product of its digits is 40642560, while the sum is 64.

It can be divided in two parts, 13957 and 8374881, that added together give a palindrome (8388838).

The spelling of 139578374881 in words is "one hundred thirty-nine billion, five hundred seventy-eight million, three hundred seventy-four thousand, eight hundred eighty-one".