70703020391 has 4 divisors (see below), whose sum is σ = 72613912872. Its totient is φ = 68792127912.

The previous prime is 70703020361. The next prime is 70703020393. The reversal of 70703020391 is 19302030707.

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 70703020391 - 2²⁶ = 70635911527 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 (70703020393) 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, 955446185 + ... + 955446258.

It is an arithmetic number, because the mean of its divisors is an integer number (18153478218).

Almost surely, 2^70703020391 is an apocalyptic number.

70703020391 is a deficient number, since it is larger than the sum of its proper divisors (1910892481).

70703020391 is a wasteful number, since it uses less digits than its factorization.

70703020391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910892480.

The product of its (nonzero) digits is 7938, while the sum is 32.

The spelling of 70703020391 in words is "seventy billion, seven hundred three million, twenty thousand, three hundred ninety-one".