70991747126 has 8 divisors (see below), whose sum is σ = 106488754680. Its totient is φ = 35495495568.

The previous prime is 70991747111. The next prime is 70991747137. The reversal of 70991747126 is 62174719907.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246050 + ... + 450026.

It is an arithmetic number, because the mean of its divisors is an integer number (13311094335).

Almost surely, 2^70991747126 is an apocalyptic number.

70991747126 is a deficient number, since it is larger than the sum of its proper divisors (35497007554).

70991747126 is a wasteful number, since it uses less digits than its factorization.

70991747126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377998.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 70991747126 in words is "seventy billion, nine hundred ninety-one million, seven hundred forty-seven thousand, one hundred twenty-six".