10501807644 has 36 divisors (see below), whose sum is σ = 26549721744. Its totient is φ = 3500142912.

The previous prime is 10501807639. The next prime is 10501807711. The reversal of 10501807644 is 44670810501.

It is a happy number.

10501807644 is a `hidden beast` number, since 1 + 0 + 5 + 0 + 1 + 8 + 0 + 7 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10501807644² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 10501807599 and 10501807608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363624 + ... + 391440.

Almost surely, 2^10501807644 is an apocalyptic number.

It is an amenable number.

10501807644 is an abundant number, since it is smaller than the sum of its proper divisors (16047914100).

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

10501807644 is a wasteful number, since it uses less digits than its factorization.

10501807644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38314 (or 38309 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 10501807644 in words is "ten billion, five hundred one million, eight hundred seven thousand, six hundred forty-four".