49026373561 has 9 divisors (see below), whose sum is σ = 53891170543. Its totient is φ = 44567216320.

The previous prime is 49026373541. The next prime is 49026373597. The reversal of 49026373561 is 16537362094.

The square root of 49026373561 is 221419.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 44008067961 + 5018305600 = 209781^2 + 70840^2 .

It is not a de Polignac number, because 49026373561 - 2⁷ = 49026373433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49026373541) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2425545 + ... + 2445673.

Almost surely, 2^49026373561 is an apocalyptic number.

49026373561 is the 221419-th square number.

49026373561 is the 110710-th centered octagonal number.

It is an amenable number.

49026373561 is a deficient number, since it is larger than the sum of its proper divisors (4864796982).

49026373561 is an frugal number, since it uses more digits than its factorization.

49026373561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40280 (or 20140 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 49026373561 in words is "forty-nine billion, twenty-six million, three hundred seventy-three thousand, five hundred sixty-one".