5431400064 has 48 divisors (see below), whose sum is σ = 15629422770. Its totient is φ = 1810466304.

The previous prime is 5431399991. The next prime is 5431400071. The reversal of 5431400064 is 4600041345.

It can be written as a sum of positive squares in only one way, i.e., 3701505600 + 1729894464 = 60840^2 + 41592^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2356227 + ... + 2358530.

Almost surely, 2^5431400064 is an apocalyptic number.

It is an amenable number.

5431400064 is an abundant number, since it is smaller than the sum of its proper divisors (10198022706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5431400064 is a wasteful number, since it uses less digits than its factorization.

5431400064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714777 (or 4714762 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 5431400064 is about 73698.0329723935. The cubic root of 5431400064 is about 1757.8046042350.

The spelling of 5431400064 in words is "five billion, four hundred thirty-one million, four hundred thousand, sixty-four".