70397142774 has 64 divisors (see below), whose sum is σ = 168026158080. Its totient is φ = 19224944640.

The previous prime is 70397142773. The next prime is 70397142779. The reversal of 70397142774 is 47724179307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70397142773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1335234 + ... + 1386954.

It is an arithmetic number, because the mean of its divisors is an integer number (2625408720).

Almost surely, 2^70397142774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70397142774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84013079040).

70397142774 is an abundant number, since it is smaller than the sum of its proper divisors (97629015306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70397142774 is a wasteful number, since it uses less digits than its factorization.

70397142774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53165.

The product of its (nonzero) digits is 2074464, while the sum is 51.

The spelling of 70397142774 in words is "seventy billion, three hundred ninety-seven million, one hundred forty-two thousand, seven hundred seventy-four".