139149068649408 has 84 divisors (see below), whose sum is σ = 416186797757328. Its totient is φ = 44366369710080.

The previous prime is 139149068649407. The next prime is 139149068649413. The reversal of 139149068649408 is 804946860941931.

139149068649408 is a `hidden beast` number, since 1 + 3 + 9 + 14 + 90 + 6 + 86 + 49 + 408 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139149068649403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5251687713 + ... + 5251714208.

Almost surely, 2^{139149068649408} is an apocalyptic number.

139149068649408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139149068649408 is an abundant number, since it is smaller than the sum of its proper divisors (277037729107920).

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

139149068649408 is a wasteful number, since it uses less digits than its factorization.

139149068649408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503401962 (or 10503401949 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 72.

The spelling of 139149068649408 in words is "one hundred thirty-nine trillion, one hundred forty-nine billion, sixty-eight million, six hundred forty-nine thousand, four hundred eight".