70440949875 has 32 divisors (see below), whose sum is σ = 119939668992. Its totient is φ = 36694812000.

The previous prime is 70440949871. The next prime is 70440949927. The reversal of 70440949875 is 57894904407.

It is a happy number.

It is not a de Polignac number, because 70440949875 - 2² = 70440949871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70440949871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2168091 + ... + 2200340.

It is an arithmetic number, because the mean of its divisors is an integer number (3748114656).

Almost surely, 2^70440949875 is an apocalyptic number.

70440949875 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70440949875 is a deficient number, since it is larger than the sum of its proper divisors (49498719117).

70440949875 is a wasteful number, since it uses less digits than its factorization.

70440949875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4368492 (or 4368482 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 70440949875 in words is "seventy billion, four hundred forty million, nine hundred forty-nine thousand, eight hundred seventy-five".