72290856941 has 2 divisors, whose sum is σ = 72290856942. Its totient is φ = 72290856940.

The previous prime is 72290856907. The next prime is 72290856973. The reversal of 72290856941 is 14965809227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72174971716 + 115885225 = 268654^2 + 10765^2 .

It is a cyclic number.

It is not a de Polignac number, because 72290856941 - 2³⁰ = 71217115117 is a prime.

It is a super-3 number, since 3×72290856941³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72290856241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36145428470 + 36145428471.

It is an arithmetic number, because the mean of its divisors is an integer number (36145428471).

Almost surely, 2^72290856941 is an apocalyptic number.

It is an amenable number.

72290856941 is a deficient number, since it is larger than the sum of its proper divisors (1).

72290856941 is an equidigital number, since it uses as much as digits as its factorization.

72290856941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 72290856941 in words is "seventy-two billion, two hundred ninety million, eight hundred fifty-six thousand, nine hundred forty-one".