61272931326 has 32 divisors (see below), whose sum is σ = 130967124480. Its totient is φ = 19043223936.

The previous prime is 61272931303. The next prime is 61272931333. The reversal of 61272931326 is 62313927216.

It is a super-2 number, since 2×61272931326² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796166 + ... + 2817993.

It is an arithmetic number, because the mean of its divisors is an integer number (4092722640).

Almost surely, 2^61272931326 is an apocalyptic number.

61272931326 is an abundant number, since it is smaller than the sum of its proper divisors (69694193154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61272931326 is a wasteful number, since it uses less digits than its factorization.

61272931326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614288.

The product of its digits is 163296, while the sum is 42.

The spelling of 61272931326 in words is "sixty-one billion, two hundred seventy-two million, nine hundred thirty-one thousand, three hundred twenty-six".