36291458921 has 2 divisors, whose sum is σ = 36291458922. Its totient is φ = 36291458920.

The previous prime is 36291458911. The next prime is 36291458927. The reversal of 36291458921 is 12985419263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28043186521 + 8248272400 = 167461^2 + 90820^2 .

It is a cyclic number.

It is not a de Polignac number, because 36291458921 - 2²² = 36287264617 is a prime.

It is a super-2 number, since 2×36291458921² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36291458921.

It is not a weakly prime, because it can be changed into another prime (36291458927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18145729460 + 18145729461.

It is an arithmetic number, because the mean of its divisors is an integer number (18145729461).

Almost surely, 2^36291458921 is an apocalyptic number.

It is an amenable number.

36291458921 is a deficient number, since it is larger than the sum of its proper divisors (1).

36291458921 is an equidigital number, since it uses as much as digits as its factorization.

36291458921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 50.

The spelling of 36291458921 in words is "thirty-six billion, two hundred ninety-one million, four hundred fifty-eight thousand, nine hundred twenty-one".