70991211434 has 32 divisors (see below), whose sum is σ = 125121374784. Its totient is φ = 29782241280.

The previous prime is 70991211433. The next prime is 70991211457. The reversal of 70991211434 is 43411219907.

It is a super-3 number, since 3×70991211434³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70991211391 and 70991211400.

It is not an unprimeable number, because it can be changed into a prime (70991211433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2696177 + ... + 2722379.

It is an arithmetic number, because the mean of its divisors is an integer number (3910042962).

Almost surely, 2^70991211434 is an apocalyptic number.

70991211434 is a deficient number, since it is larger than the sum of its proper divisors (54130163350).

70991211434 is a wasteful number, since it uses less digits than its factorization.

70991211434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35702.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 70991211434 in words is "seventy billion, nine hundred ninety-one million, two hundred eleven thousand, four hundred thirty-four".