201430747688 has 16 divisors (see below), whose sum is σ = 377853350580. Its totient is φ = 100669854208.

The previous prime is 201430747663. The next prime is 201430747697. The reversal of 201430747688 is 886747034102.

It can be written as a sum of positive squares in 2 ways, for example, as 158705030884 + 42725716804 = 398378^2 + 206702^2 .

It is a super-2 number, since 2×201430747688² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5671145 + ... + 5706552.

Almost surely, 2^201430747688 is an apocalyptic number.

It is an amenable number.

201430747688 is a deficient number, since it is larger than the sum of its proper divisors (176422602892).

201430747688 is a wasteful number, since it uses less digits than its factorization.

201430747688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11379916 (or 11379912 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 201430747688 in words is "two hundred one billion, four hundred thirty million, seven hundred forty-seven thousand, six hundred eighty-eight".