139696633476 has 120 divisors (see below), whose sum is σ = 386998914456. Its totient is φ = 43789870080.

The previous prime is 139696633471. The next prime is 139696633523. The reversal of 139696633476 is 674336696931.

139696633476 is a `hidden beast` number, since 1 + 396 + 96 + 63 + 34 + 76 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10873067076 + 128823566400 = 104274^2 + 358920^2 .

It is not an unprimeable number, because it can be changed into a prime (139696633471) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7023786 + ... + 7043646.

Almost surely, 2^139696633476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139696633476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193499457228).

139696633476 is an abundant number, since it is smaller than the sum of its proper divisors (247302280980).

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

139696633476 is a wasteful number, since it uses less digits than its factorization.

139696633476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21171 (or 21160 counting only the distinct ones).

The product of its digits is 79361856, while the sum is 63.

The spelling of 139696633476 in words is "one hundred thirty-nine billion, six hundred ninety-six million, six hundred thirty-three thousand, four hundred seventy-six".