73860291401021 has 2 divisors, whose sum is σ = 73860291401022. Its totient is φ = 73860291401020.

The previous prime is 73860291401009. The next prime is 73860291401119. The reversal of 73860291401021 is 12010419206837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51399421696921 + 22460869704100 = 7169339^2 + 4739290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73860291401021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73860291401821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36930145700510 + 36930145700511.

It is an arithmetic number, because the mean of its divisors is an integer number (36930145700511).

Almost surely, 2^{73860291401021} is an apocalyptic number.

It is an amenable number.

73860291401021 is a deficient number, since it is larger than the sum of its proper divisors (1).

73860291401021 is an equidigital number, since it uses as much as digits as its factorization.

73860291401021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 73860291401021 in words is "seventy-three trillion, eight hundred sixty billion, two hundred ninety-one million, four hundred one thousand, twenty-one".