70138277728742 has 16 divisors (see below), whose sum is σ = 107887966394400. Its totient is φ = 34186721849280.

The previous prime is 70138277728693. The next prime is 70138277728781. The reversal of 70138277728742 is 24782777283107.

It is a super-2 number, since 2×70138277728742² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2774883617 + ... + 2774908892.

It is an arithmetic number, because the mean of its divisors is an integer number (6742997899650).

Almost surely, 2^{70138277728742} is an apocalyptic number.

70138277728742 is a deficient number, since it is larger than the sum of its proper divisors (37749688665658).

70138277728742 is a wasteful number, since it uses less digits than its factorization.

70138277728742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549792671.

The product of its (nonzero) digits is 103262208, while the sum is 65.

The spelling of 70138277728742 in words is "seventy trillion, one hundred thirty-eight billion, two hundred seventy-seven million, seven hundred twenty-eight thousand, seven hundred forty-two".