10639540737 has 24 divisors (see below), whose sum is σ = 17652862656. Its totient is φ = 6048868896.

The previous prime is 10639540699. The next prime is 10639540757. The reversal of 10639540737 is 73704593601.

10639540737 is a `hidden beast` number, since 1 + 0 + 6 + 39 + 540 + 73 + 7 = 666.

It is not a de Polignac number, because 10639540737 - 2⁶ = 10639540673 is a prime.

It is a super-2 number, since 2×10639540737² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10639540692 and 10639540701.

It is not an unprimeable number, because it can be changed into a prime (10639540757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 416223 + ... + 441044.

It is an arithmetic number, because the mean of its divisors is an integer number (735535944).

Almost surely, 2^10639540737 is an apocalyptic number.

It is an amenable number.

10639540737 is a deficient number, since it is larger than the sum of its proper divisors (7013321919).

10639540737 is a wasteful number, since it uses less digits than its factorization.

10639540737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857477 (or 857474 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 10639540737 in words is "ten billion, six hundred thirty-nine million, five hundred forty thousand, seven hundred thirty-seven".