1290907511072 has 24 divisors (see below), whose sum is σ = 2552381791596. Its totient is φ = 642683564032.

The previous prime is 1290907511071. The next prime is 1290907511081. The reversal of 1290907511072 is 2701157090921.

It can be written as a sum of positive squares in 2 ways, for example, as 958213885456 + 332693625616 = 978884^2 + 576796^2 .

It is not an unprimeable number, because it can be changed into a prime (1290907511071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86560913 + ... + 86575824.

Almost surely, 2^{1290907511072} is an apocalyptic number.

It is an amenable number.

1290907511072 is a deficient number, since it is larger than the sum of its proper divisors (1261474280524).

1290907511072 is a wasteful number, since it uses less digits than its factorization.

1290907511072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173136980 (or 173136972 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 44.

The spelling of 1290907511072 in words is "one trillion, two hundred ninety billion, nine hundred seven million, five hundred eleven thousand, seventy-two".