139951478350 has 24 divisors (see below), whose sum is σ = 260567831520. Its totient is φ = 55925089920.

The previous prime is 139951478341. The next prime is 139951478423. The reversal of 139951478350 is 53874159931.

It is a junction number, because it is equal to n+sod(n) for n = 139951478291 and 139951478300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1336582 + ... + 1437481.

It is an arithmetic number, because the mean of its divisors is an integer number (10856992980).

Almost surely, 2^139951478350 is an apocalyptic number.

139951478350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139951478350 is a deficient number, since it is larger than the sum of its proper divisors (120616353170).

139951478350 is a wasteful number, since it uses less digits than its factorization.

139951478350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775084 (or 2775079 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 139951478350 in words is "one hundred thirty-nine billion, nine hundred fifty-one million, four hundred seventy-eight thousand, three hundred fifty".