15070985709 has 32 divisors (see below), whose sum is σ = 21949132800. Its totient is φ = 9142511040.

The previous prime is 15070985701. The next prime is 15070985711. The reversal of 15070985709 is 90758907051.

It is not a de Polignac number, because 15070985709 - 2³ = 15070985701 is a prime.

It is a super-2 number, since 2×15070985709² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15070985701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2125432 + ... + 2132510.

It is an arithmetic number, because the mean of its divisors is an integer number (685910400).

Almost surely, 2^15070985709 is an apocalyptic number.

It is an amenable number.

15070985709 is a deficient number, since it is larger than the sum of its proper divisors (6878147091).

15070985709 is a wasteful number, since it uses less digits than its factorization.

15070985709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865.

The product of its (nonzero) digits is 793800, while the sum is 51.

The spelling of 15070985709 in words is "fifteen billion, seventy million, nine hundred eighty-five thousand, seven hundred nine".