70632551993 has 4 divisors (see below), whose sum is σ = 70636073508. Its totient is φ = 70629030480.

The previous prime is 70632551947. The next prime is 70632552031. The reversal of 70632551993 is 39915523607.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53936811049 + 16695740944 = 232243^2 + 129212^2 .

It is a cyclic number.

It is not a de Polignac number, because 70632551993 - 2³⁴ = 53452682809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70632551393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730498 + ... + 1770843.

It is an arithmetic number, because the mean of its divisors is an integer number (17659018377).

Almost surely, 2^70632551993 is an apocalyptic number.

It is an amenable number.

70632551993 is a deficient number, since it is larger than the sum of its proper divisors (3521515).

70632551993 is a wasteful number, since it uses less digits than its factorization.

70632551993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521514.

The product of its (nonzero) digits is 1530900, while the sum is 50.

The spelling of 70632551993 in words is "seventy billion, six hundred thirty-two million, five hundred fifty-one thousand, nine hundred ninety-three".