2723723212157 has 4 divisors (see below), whose sum is σ = 2723726798016. Its totient is φ = 2723719626300.

The previous prime is 2723723212127. The next prime is 2723723212181. The reversal of 2723723212157 is 7512123273272.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2723723212157 - 2¹⁶ = 2723723146621 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 (2723723212127) 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, 154469 + ... + 2339082.

It is an arithmetic number, because the mean of its divisors is an integer number (680931699504).

Almost surely, 2^{2723723212157} is an apocalyptic number.

It is an amenable number.

2723723212157 is a deficient number, since it is larger than the sum of its proper divisors (3585859).

2723723212157 is a wasteful number, since it uses less digits than its factorization.

2723723212157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585858.

The product of its digits is 493920, while the sum is 44.

The spelling of 2723723212157 in words is "two trillion, seven hundred twenty-three billion, seven hundred twenty-three million, two hundred twelve thousand, one hundred fifty-seven".