139991825940 has 24 divisors (see below), whose sum is σ = 391977112800. Its totient is φ = 37331153568.

The previous prime is 139991825887. The next prime is 139991825957. The reversal of 139991825940 is 49528199931.

It is a super-2 number, since 2×139991825940² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 2333197099 = 139991825940 / (1 + 3 + 9 + 9 + 9 + 1 + 8 + 2 + 5 + 9 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166598490 + ... + 1166598609.

It is an arithmetic number, because the mean of its divisors is an integer number (16332379700).

Almost surely, 2^139991825940 is an apocalyptic number.

139991825940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139991825940 is an abundant number, since it is smaller than the sum of its proper divisors (251985286860).

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

139991825940 is a wasteful number, since it uses less digits than its factorization.

139991825940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333197111 (or 2333197109 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 60.

The spelling of 139991825940 in words is "one hundred thirty-nine billion, nine hundred ninety-one million, eight hundred twenty-five thousand, nine hundred forty".