139628977940040 has 256 divisors, whose sum is σ = 441231738393600. Its totient is φ = 35298502880256.

The previous prime is 139628977939981. The next prime is 139628977940051. The reversal of 139628977940040 is 40049779826931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70604787 + ... + 72555453.

It is an arithmetic number, because the mean of its divisors is an integer number (1723561478100).

Almost surely, 2^{139628977940040} is an apocalyptic number.

139628977940040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139628977940040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220615869196800).

139628977940040 is an abundant number, since it is smaller than the sum of its proper divisors (301602760453560).

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

139628977940040 is a wasteful number, since it uses less digits than its factorization.

139628977940040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951084 (or 1951080 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 69.

The spelling of 139628977940040 in words is "one hundred thirty-nine trillion, six hundred twenty-eight billion, nine hundred seventy-seven million, nine hundred forty thousand, forty".