5431401994 has 4 divisors (see below), whose sum is σ = 8147102994. Its totient is φ = 2715700996.

The previous prime is 5431401973. The next prime is 5431402007. The reversal of 5431401994 is 4991041345.

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

It can be written as a sum of positive squares in only one way, i.e., 3774504969 + 1656897025 = 61437^2 + 40705^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1357850497 + ... + 1357850500.

Almost surely, 2^5431401994 is an apocalyptic number.

5431401994 is a deficient number, since it is larger than the sum of its proper divisors (2715701000).

5431401994 is a wasteful number, since it uses less digits than its factorization.

5431401994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715700999.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 5431401994 is about 73698.0460663646. The cubic root of 5431401994 is about 1757.8048124417.

The spelling of 5431401994 in words is "five billion, four hundred thirty-one million, four hundred one thousand, nine hundred ninety-four".