75005949272 has 8 divisors (see below), whose sum is σ = 140636154900. Its totient is φ = 37502974632.

The previous prime is 75005949259. The next prime is 75005949289. The reversal of 75005949272 is 27294950057.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 75005949272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4687871822 + ... + 4687871837.

Almost surely, 2^75005949272 is an apocalyptic number.

It is an amenable number.

75005949272 is a deficient number, since it is larger than the sum of its proper divisors (65630205628).

75005949272 is a wasteful number, since it uses less digits than its factorization.

75005949272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9375743665 (or 9375743661 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 75005949272 in words is "seventy-five billion, five million, nine hundred forty-nine thousand, two hundred seventy-two".