10405513672 has 8 divisors (see below), whose sum is σ = 19510338150. Its totient is φ = 5202756832.

The previous prime is 10405513667. The next prime is 10405513673. The reversal of 10405513672 is 27631550401.

It can be written as a sum of positive squares in only one way, i.e., 7560998116 + 2844515556 = 86954^2 + 53334^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (10405513673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650344597 + ... + 650344612.

Almost surely, 2^10405513672 is an apocalyptic number.

It is an amenable number.

10405513672 is a deficient number, since it is larger than the sum of its proper divisors (9104824478).

10405513672 is a wasteful number, since it uses less digits than its factorization.

10405513672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300689215 (or 1300689211 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 10405513672 in words is "ten billion, four hundred five million, five hundred thirteen thousand, six hundred seventy-two".