45698569981 has 4 divisors (see below), whose sum is σ = 47685464352. Its totient is φ = 43711675612.

The previous prime is 45698569979. The next prime is 45698569997. The reversal of 45698569981 is 18996589654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45698569981 - 2¹ = 45698569979 is a prime.

It is a super-2 number, since 2×45698569981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45698569981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45698564981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993447151 + ... + 993447196.

It is an arithmetic number, because the mean of its divisors is an integer number (11921366088).

Almost surely, 2^45698569981 is an apocalyptic number.

It is an amenable number.

45698569981 is a deficient number, since it is larger than the sum of its proper divisors (1986894371).

45698569981 is a wasteful number, since it uses less digits than its factorization.

45698569981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986894370.

The product of its digits is 167961600, while the sum is 70.

The spelling of 45698569981 in words is "forty-five billion, six hundred ninety-eight million, five hundred sixty-nine thousand, nine hundred eighty-one".