23072158477 has 8 divisors (see below), whose sum is σ = 23116154040. Its totient is φ = 23028203520.

The previous prime is 23072158471. The next prime is 23072158519. The reversal of 23072158477 is 77485127032.

It can be written as a sum of positive squares in 4 ways, for example, as 414081801 + 22658076676 = 20349^2 + 150526^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23072158477 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 (23072158471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278477 + ... + 1296397.

It is an arithmetic number, because the mean of its divisors is an integer number (2889519255).

Almost surely, 2^23072158477 is an apocalyptic number.

It is an amenable number.

23072158477 is a deficient number, since it is larger than the sum of its proper divisors (43995563).

23072158477 is a wasteful number, since it uses less digits than its factorization.

23072158477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20303.

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 23072158477 in words is "twenty-three billion, seventy-two million, one hundred fifty-eight thousand, four hundred seventy-seven".