545670551931 has 4 divisors (see below), whose sum is σ = 727560735912. Its totient is φ = 363780367952.

The previous prime is 545670551897. The next prime is 545670551953. The reversal of 545670551931 is 139155076545.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545670551931 - 2¹¹ = 545670549883 is a prime.

It is a super-2 number, since 2×545670551931² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545670551431) 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, 90945091986 + ... + 90945091991.

It is an arithmetic number, because the mean of its divisors is an integer number (181890183978).

Almost surely, 2^545670551931 is an apocalyptic number.

545670551931 is a deficient number, since it is larger than the sum of its proper divisors (181890183981).

545670551931 is a wasteful number, since it uses less digits than its factorization.

545670551931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181890183980.

The product of its (nonzero) digits is 2835000, while the sum is 51.

The spelling of 545670551931 in words is "five hundred forty-five billion, six hundred seventy million, five hundred fifty-one thousand, nine hundred thirty-one".