5456771990 has 32 divisors (see below), whose sum is σ = 9910463616. Its totient is φ = 2163179520.

The previous prime is 5456771989. The next prime is 5456772001. The reversal of 5456771990 is 991776545.

It is a Curzon 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, 517814 + ... + 528246.

It is an arithmetic number, because the mean of its divisors is an integer number (309701988).

Almost surely, 2^5456771990 is an apocalyptic number.

5456771990 is a deficient number, since it is larger than the sum of its proper divisors (4453691626).

5456771990 is a wasteful number, since it uses less digits than its factorization.

5456771990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10904.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The square root of 5456771990 is about 73869.9667659327. The cubic root of 5456771990 is about 1760.5374553066.

The spelling of 5456771990 in words is "five billion, four hundred fifty-six million, seven hundred seventy-one thousand, nine hundred ninety".