74770407814121 has 2 divisors, whose sum is σ = 74770407814122. Its totient is φ = 74770407814120.

The previous prime is 74770407814117. The next prime is 74770407814159. The reversal of 74770407814121 is 12141870407747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51502712018521 + 23267695795600 = 7176539^2 + 4823660^2 .

It is a cyclic number.

It is not a de Polignac number, because 74770407814121 - 2² = 74770407814117 is a prime.

It is a super-2 number, since 2×74770407814121² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74770407814171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37385203907060 + 37385203907061.

It is an arithmetic number, because the mean of its divisors is an integer number (37385203907061).

Almost surely, 2^{74770407814121} is an apocalyptic number.

It is an amenable number.

74770407814121 is a deficient number, since it is larger than the sum of its proper divisors (1).

74770407814121 is an equidigital number, since it uses as much as digits as its factorization.

74770407814121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2458624, while the sum is 53.

The spelling of 74770407814121 in words is "seventy-four trillion, seven hundred seventy billion, four hundred seven million, eight hundred fourteen thousand, one hundred twenty-one".