70234681381 has 4 divisors (see below), whose sum is σ = 71729036352. Its totient is φ = 68740326412.

The previous prime is 70234681343. The next prime is 70234681427. The reversal of 70234681381 is 18318643207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70234681381 - 2²⁵ = 70201126949 is a prime.

It is a super-2 number, since 2×70234681381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70234681081) 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, 747177415 + ... + 747177508.

It is an arithmetic number, because the mean of its divisors is an integer number (17932259088).

Almost surely, 2^70234681381 is an apocalyptic number.

It is an amenable number.

70234681381 is a deficient number, since it is larger than the sum of its proper divisors (1494354971).

70234681381 is a wasteful number, since it uses less digits than its factorization.

70234681381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494354970.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 70234681381 in words is "seventy billion, two hundred thirty-four million, six hundred eighty-one thousand, three hundred eighty-one".