61722833948 has 24 divisors (see below), whose sum is σ = 112722640800. Its totient is φ = 29516636160.

The previous prime is 61722833947. The next prime is 61722833981. The reversal of 61722833948 is 84933822716.

It is a self number, because there is not a number n which added to its sum of digits gives 61722833948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61722833947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080668 + ... + 1136348.

It is an arithmetic number, because the mean of its divisors is an integer number (4696776700).

Almost surely, 2^61722833948 is an apocalyptic number.

It is an amenable number.

61722833948 is a deficient number, since it is larger than the sum of its proper divisors (50999806852).

61722833948 is a wasteful number, since it uses less digits than its factorization.

61722833948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67757 (or 67755 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The spelling of 61722833948 in words is "sixty-one billion, seven hundred twenty-two million, eight hundred thirty-three thousand, nine hundred forty-eight".