139636042722 has 270 divisors, whose sum is σ = 367680745971. Its totient is φ = 39571234560.

The previous prime is 139636042691. The next prime is 139636042727. The reversal of 139636042722 is 227240636931.

139636042722 is a `hidden beast` number, since 1 + 3 + 9 + 636 + 0 + 4 + 2 + 7 + 2 + 2 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 81236970441 + 58399072281 = 285021^2 + 241659^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=264231.

It is not an unprimeable number, because it can be changed into a prime (139636042727) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 889401468 + ... + 889401624.

Almost surely, 2^139636042722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139636042722

139636042722 is an abundant number, since it is smaller than the sum of its proper divisors (228044703249).

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

139636042722 is a wasteful number, since it uses less digits than its factorization.

139636042722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 139636042722 in words is "one hundred thirty-nine billion, six hundred thirty-six million, forty-two thousand, seven hundred twenty-two".