49631373961 has 9 divisors (see below), whose sum is σ = 53745984981. Its totient is φ = 45810902592.

The previous prime is 49631373947. The next prime is 49631374003. The reversal of 49631373961 is 16937313694.

The square root of 49631373961 is 222781.

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

It can be written as a sum of positive squares in 4 ways, for example, as 39434413561 + 10196960400 = 198581^2 + 100980^2 .

It is not a de Polignac number, because 49631373961 - 2¹⁹ = 49630849673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49631373899 and 49631373908.

It is not an unprimeable number, because it can be changed into a prime (49631373361) 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, 2887585 + ... + 2904721.

It is an arithmetic number, because the mean of its divisors is an integer number (5971776109).

Almost surely, 2^49631373961 is an apocalyptic number.

49631373961 is the 222781-st square number.

49631373961 is the 111391-st centered octagonal number.

It is an amenable number.

49631373961 is a deficient number, since it is larger than the sum of its proper divisors (4114611020).

49631373961 is an frugal number, since it uses more digits than its factorization.

49631373961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34300 (or 17150 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 52.

The spelling of 49631373961 in words is "forty-nine billion, six hundred thirty-one million, three hundred seventy-three thousand, nine hundred sixty-one".