70819513772 has 24 divisors (see below), whose sum is σ = 141645154560. Its totient is φ = 30349907280.

The previous prime is 70819513759. The next prime is 70819513777. The reversal of 70819513772 is 27731591807.

It is a self number, because there is not a number n which added to its sum of digits gives 70819513772.

It is not an unprimeable number, because it can be changed into a prime (70819513777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890897 + ... + 967127.

It is an arithmetic number, because the mean of its divisors is an integer number (5901881440).

Almost surely, 2^70819513772 is an apocalyptic number.

It is an amenable number.

70819513772 is an abundant number, since it is smaller than the sum of its proper divisors (70825640788).

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

70819513772 is a wasteful number, since it uses less digits than its factorization.

70819513772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109421 (or 109419 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 70819513772 in words is "seventy billion, eight hundred nineteen million, five hundred thirteen thousand, seven hundred seventy-two".