10402155709 has 12 divisors (see below), whose sum is σ = 11544795808. Its totient is φ = 9364683240.

The previous prime is 10402155707. The next prime is 10402155713. The reversal of 10402155709 is 90755120401.

It is not a de Polignac number, because 10402155709 - 2¹ = 10402155707 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402155707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404859 + ... + 429784.

Almost surely, 2^10402155709 is an apocalyptic number.

It is an amenable number.

10402155709 is a deficient number, since it is larger than the sum of its proper divisors (1142640099).

10402155709 is a wasteful number, since it uses less digits than its factorization.

10402155709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834768 (or 834757 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 10402155709 in words is "ten billion, four hundred two million, one hundred fifty-five thousand, seven hundred nine".