31061045342788 has 6 divisors (see below), whose sum is σ = 54356829349886. Its totient is φ = 15530522671392.

The previous prime is 31061045342783. The next prime is 31061045342807. The reversal of 31061045342788 is 88724354016013.

It can be written as a sum of positive squares in only one way, i.e., 22965870921984 + 8095174420804 = 4792272^2 + 2845202^2 .

It is a super-2 number, since 2×31061045342788² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31061045342783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3882630667845 + ... + 3882630667852.

Almost surely, 2^{31061045342788} is an apocalyptic number.

It is an amenable number.

31061045342788 is a deficient number, since it is larger than the sum of its proper divisors (23295784007098).

31061045342788 is a wasteful number, since it uses less digits than its factorization.

31061045342788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765261335701 (or 7765261335699 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 31061045342788 in words is "thirty-one trillion, sixty-one billion, forty-five million, three hundred forty-two thousand, seven hundred eighty-eight".