5209740972 has 18 divisors (see below), whose sum is σ = 13169067548. Its totient is φ = 1736580312.

The previous prime is 5209740959. The next prime is 5209740983. The reversal of 5209740972 is 2790479025.

It is a tau number, because it is divible by the number of its divisors (18).

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, 72357478 + ... + 72357549.

Almost surely, 2^5209740972 is an apocalyptic number.

It is an amenable number.

5209740972 is an abundant number, since it is smaller than the sum of its proper divisors (7959326576).

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

5209740972 is a wasteful number, since it uses less digits than its factorization.

5209740972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144715037 (or 144715032 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 5209740972 is about 72178.5353966122. The cubic root of 5209740972 is about 1733.5593321527.

The spelling of 5209740972 in words is "five billion, two hundred nine million, seven hundred forty thousand, nine hundred seventy-two".