47452940393 has 12 divisors (see below), whose sum is σ = 48368257740. Its totient is φ = 46550980800.

The previous prime is 47452940389. The next prime is 47452940399. The reversal of 47452940393 is 39304925474.

It can be written as a sum of positive squares in 6 ways, for example, as 21063587689 + 26389352704 = 145133^2 + 162448^2 .

It is not a de Polignac number, because 47452940393 - 2² = 47452940389 is a prime.

It is a super-2 number, since 2×47452940393² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47452940399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090571 + ... + 1133247.

It is an arithmetic number, because the mean of its divisors is an integer number (4030688145).

Almost surely, 2^47452940393 is an apocalyptic number.

It is an amenable number.

47452940393 is a deficient number, since it is larger than the sum of its proper divisors (915317347).

47452940393 is a wasteful number, since it uses less digits than its factorization.

47452940393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42988 (or 42887 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 47452940393 in words is "forty-seven billion, four hundred fifty-two million, nine hundred forty thousand, three hundred ninety-three".