42272155961537 has 2 divisors, whose sum is σ = 42272155961538. Its totient is φ = 42272155961536.

The previous prime is 42272155961473. The next prime is 42272155961569. The reversal of 42272155961537 is 73516955127224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40305433006336 + 1966722955201 = 6348656^2 + 1402399^2 .

It is a cyclic number.

It is not a de Polignac number, because 42272155961537 - 2⁶ = 42272155961473 is a prime.

It is not a weakly prime, because it can be changed into another prime (42272155961137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21136077980768 + 21136077980769.

It is an arithmetic number, because the mean of its divisors is an integer number (21136077980769).

Almost surely, 2^{42272155961537} is an apocalyptic number.

It is an amenable number.

42272155961537 is a deficient number, since it is larger than the sum of its proper divisors (1).

42272155961537 is an equidigital number, since it uses as much as digits as its factorization.

42272155961537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752000, while the sum is 59.

The spelling of 42272155961537 in words is "forty-two trillion, two hundred seventy-two billion, one hundred fifty-five million, nine hundred sixty-one thousand, five hundred thirty-seven".