70787824506 has 64 divisors (see below), whose sum is σ = 189240652800. Its totient is φ = 19160612208.

The previous prime is 70787824463. The next prime is 70787824517. The reversal of 70787824506 is 60542878707.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4920960 + ... + 4935323.

It is an arithmetic number, because the mean of its divisors is an integer number (2956885200).

Almost surely, 2^70787824506 is an apocalyptic number.

70787824506 is an abundant number, since it is smaller than the sum of its proper divisors (118452828294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70787824506 is a wasteful number, since it uses less digits than its factorization.

70787824506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9856320 (or 9856314 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The spelling of 70787824506 in words is "seventy billion, seven hundred eighty-seven million, eight hundred twenty-four thousand, five hundred six".