70991211400 has 48 divisors (see below), whose sum is σ = 167043214800. Its totient is φ = 28054351680.

The previous prime is 70991211377. The next prime is 70991211419. The reversal of 70991211400 is 411219907.

It is a super-3 number, since 3×70991211400³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2121690 + ... + 2154889.

It is an arithmetic number, because the mean of its divisors is an integer number (3480066975).

Almost surely, 2^70991211400 is an apocalyptic number.

It is an amenable number.

70991211400 is an abundant number, since it is smaller than the sum of its proper divisors (96052003400).

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

70991211400 is a wasteful number, since it uses less digits than its factorization.

70991211400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276678 (or 4276669 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 70991211400 in words is "seventy billion, nine hundred ninety-one million, two hundred eleven thousand, four hundred".