10506615426 has 24 divisors (see below), whose sum is σ = 22859591040. Its totient is φ = 3487550136.

The previous prime is 10506615397. The next prime is 10506615437. The reversal of 10506615426 is 62451660501.

10506615426 is a `hidden beast` number, since 1 + 0 + 50 + 6 + 61 + 542 + 6 = 666.

It is a super-2 number, since 2×10506615426² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1216830 + ... + 1225433.

It is an arithmetic number, because the mean of its divisors is an integer number (952482960).

Almost surely, 2^10506615426 is an apocalyptic number.

10506615426 is an abundant number, since it is smaller than the sum of its proper divisors (12352975614).

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

10506615426 is a wasteful number, since it uses less digits than its factorization.

10506615426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442510 (or 2442507 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 10506615426 in words is "ten billion, five hundred six million, six hundred fifteen thousand, four hundred twenty-six".