8770945631 has 4 divisors (see below), whose sum is σ = 10023937872. Its totient is φ = 7517953392.

The previous prime is 8770945613. The next prime is 8770945663. The reversal of 8770945631 is 1365490778.

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

It is a cyclic number.

It is not a de Polignac number, because 8770945631 - 2¹⁸ = 8770683487 is a prime.

It is a super-2 number, since 2×8770945631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8770945631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8770948631) 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, 626496110 + ... + 626496123.

It is an arithmetic number, because the mean of its divisors is an integer number (2505984468).

Almost surely, 2^8770945631 is an apocalyptic number.

8770945631 is a deficient number, since it is larger than the sum of its proper divisors (1252992241).

8770945631 is a wasteful number, since it uses less digits than its factorization.

8770945631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252992240.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 8770945631 is about 93653.3268549495. The cubic root of 8770945631 is about 2062.2855857718.

The spelling of 8770945631 in words is "eight billion, seven hundred seventy million, nine hundred forty-five thousand, six hundred thirty-one".