139364940650 has 24 divisors (see below), whose sum is σ = 279158697804. Its totient is φ = 51457824000.

The previous prime is 139364940643. The next prime is 139364940697. The reversal of 139364940650 is 56049463931.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5519449849 + 133845490801 = 74293^2 + 365849^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 107203151 + ... + 107204450.

Almost surely, 2^139364940650 is an apocalyptic number.

139364940650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139364940650 is an abundant number, since it is smaller than the sum of its proper divisors (139793757154).

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

139364940650 is a wasteful number, since it uses less digits than its factorization.

139364940650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214407626 (or 214407621 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 50.

The spelling of 139364940650 in words is "one hundred thirty-nine billion, three hundred sixty-four million, nine hundred forty thousand, six hundred fifty".