70087617950 has 72 divisors (see below), whose sum is σ = 153910463832. Its totient is φ = 23671327680.

The previous prime is 70087617947. The next prime is 70087617961. The reversal of 70087617950 is 5971678007.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 49337 + ... + 377636.

It is an arithmetic number, because the mean of its divisors is an integer number (2137645331).

Almost surely, 2^70087617950 is an apocalyptic number.

70087617950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70087617950 is an abundant number, since it is smaller than the sum of its proper divisors (83822845882).

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

70087617950 is a wasteful number, since it uses less digits than its factorization.

70087617950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427066 (or 427054 counting only the distinct ones).

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

The spelling of 70087617950 in words is "seventy billion, eighty-seven million, six hundred seventeen thousand, nine hundred fifty".