139638970223970 has 96 divisors (see below), whose sum is σ = 389862252662400. Its totient is φ = 31916410815744.

The previous prime is 139638970223959. The next prime is 139638970223971. The reversal of 139638970223970 is 79322079836931.

It is a junction number, because it is equal to n+sod(n) for n = 139638970223895 and 139638970223904.

It is not an unprimeable number, because it can be changed into a prime (139638970223971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42774091 + ... + 45922769.

It is an arithmetic number, because the mean of its divisors is an integer number (4061065131900).

Almost surely, 2^{139638970223970} is an apocalyptic number.

139638970223970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139638970223970 is an abundant number, since it is smaller than the sum of its proper divisors (250223282438430).

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

139638970223970 is a wasteful number, since it uses less digits than its factorization.

139638970223970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178872 (or 3178865 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 69.

The spelling of 139638970223970 in words is "one hundred thirty-nine trillion, six hundred thirty-eight billion, nine hundred seventy million, two hundred twenty-three thousand, nine hundred seventy".