10000561637 has 8 divisors (see below), whose sum is σ = 11285900640. Its totient is φ = 8777922160.

The previous prime is 10000561633. The next prime is 10000561709. The reversal of 10000561637 is 73616500001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10000561637 - 2² = 10000561633 is a prime.

It is a super-2 number, since 2×10000561637² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000561633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15674543 + ... + 15675180.

It is an arithmetic number, because the mean of its divisors is an integer number (1410737580).

Almost surely, 2^10000561637 is an apocalyptic number.

It is an amenable number.

10000561637 is a deficient number, since it is larger than the sum of its proper divisors (1285339003).

10000561637 is a wasteful number, since it uses less digits than its factorization.

10000561637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31349763.

The product of its (nonzero) digits is 3780, while the sum is 29.

The spelling of 10000561637 in words is "ten billion, five hundred sixty-one thousand, six hundred thirty-seven".