71900123147423 has 4 divisors (see below), whose sum is σ = 72315730795848. Its totient is φ = 71484515499000.

The previous prime is 71900123147357. The next prime is 71900123147507. The reversal of 71900123147423 is 32474132100917.

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 71900123147423 - 2²⁴ = 71900106370207 is a prime.

It is a super-2 number, since 2×71900123147423² (a number of 29 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 (71900123167423) 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, 207803823953 + ... + 207803824298.

It is an arithmetic number, because the mean of its divisors is an integer number (18078932698962).

Almost surely, 2^{71900123147423} is an apocalyptic number.

71900123147423 is a deficient number, since it is larger than the sum of its proper divisors (415607648425).

71900123147423 is a wasteful number, since it uses less digits than its factorization.

71900123147423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415607648424.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 71900123147423 in words is "seventy-one trillion, nine hundred billion, one hundred twenty-three million, one hundred forty-seven thousand, four hundred twenty-three".