70497612191 has 4 divisors (see below), whose sum is σ = 70507071000. Its totient is φ = 70488153384.

The previous prime is 70497612181. The next prime is 70497612193. The reversal of 70497612191 is 19121679407.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19121679407 = 17 ⋅1124804671.

It is a cyclic number.

It is not a de Polignac number, because 70497612191 - 2⁶ = 70497612127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70497612193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4718216 + ... + 4733133.

It is an arithmetic number, because the mean of its divisors is an integer number (17626767750).

Almost surely, 2^70497612191 is an apocalyptic number.

70497612191 is a deficient number, since it is larger than the sum of its proper divisors (9458809).

70497612191 is an equidigital number, since it uses as much as digits as its factorization.

70497612191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9458808.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 70497612191 in words is "seventy billion, four hundred ninety-seven million, six hundred twelve thousand, one hundred ninety-one".