10638426715 has 16 divisors (see below), whose sum is σ = 14591752128. Its totient is φ = 7293966336.

The previous prime is 10638426571. The next prime is 10638426727. The reversal of 10638426715 is 51762483601.

It is a cyclic number.

It is not a de Polignac number, because 10638426715 - 2³¹ = 8490943067 is a prime.

It is a super-2 number, since 2×10638426715² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346219 + ... + 375691.

It is an arithmetic number, because the mean of its divisors is an integer number (911984508).

Almost surely, 2^10638426715 is an apocalyptic number.

10638426715 is a deficient number, since it is larger than the sum of its proper divisors (3953325413).

10638426715 is a wasteful number, since it uses less digits than its factorization.

10638426715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39798.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 10638426715 in words is "ten billion, six hundred thirty-eight million, four hundred twenty-six thousand, seven hundred fifteen".