15798745805 has 16 divisors (see below), whose sum is σ = 19257848064. Its totient is φ = 12440554560.

The previous prime is 15798745789. The next prime is 15798745817. The reversal of 15798745805 is 50854789751.

It is not a de Polignac number, because 15798745805 - 2⁴ = 15798745789 is a prime.

It is a super-2 number, since 2×15798745805² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 42227 + ... + 182703.

It is an arithmetic number, because the mean of its divisors is an integer number (1203615504).

Almost surely, 2^15798745805 is an apocalyptic number.

It is an amenable number.

15798745805 is a deficient number, since it is larger than the sum of its proper divisors (3459102259).

15798745805 is a wasteful number, since it uses less digits than its factorization.

15798745805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140836.

The product of its (nonzero) digits is 14112000, while the sum is 59.

The spelling of 15798745805 in words is "fifteen billion, seven hundred ninety-eight million, seven hundred forty-five thousand, eight hundred five".