61231532722 has 16 divisors (see below), whose sum is σ = 97271826912. Its totient is φ = 28808395840.

The previous prime is 61231532651. The next prime is 61231532771. The reversal of 61231532722 is 22723513216.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45304 + ... + 352867.

It is an arithmetic number, because the mean of its divisors is an integer number (6079489182).

Almost surely, 2^61231532722 is an apocalyptic number.

61231532722 is a deficient number, since it is larger than the sum of its proper divisors (36040294190).

61231532722 is a wasteful number, since it uses less digits than its factorization.

61231532722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402713.

The product of its digits is 30240, while the sum is 34.

The spelling of 61231532722 in words is "sixty-one billion, two hundred thirty-one million, five hundred thirty-two thousand, seven hundred twenty-two".