70149193187 has 4 divisors (see below), whose sum is σ = 70209511800. Its totient is φ = 70088874576.

The previous prime is 70149193157. The next prime is 70149193189. The reversal of 70149193187 is 78139194107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70149193187 - 2²⁸ = 69880757731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70149193189) 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, 30157562 + ... + 30159887.

It is an arithmetic number, because the mean of its divisors is an integer number (17552377950).

Almost surely, 2^70149193187 is an apocalyptic number.

70149193187 is a deficient number, since it is larger than the sum of its proper divisors (60318613).

70149193187 is a wasteful number, since it uses less digits than its factorization.

70149193187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60318612.

The product of its (nonzero) digits is 381024, while the sum is 50.

The spelling of 70149193187 in words is "seventy billion, one hundred forty-nine million, one hundred ninety-three thousand, one hundred eighty-seven".