74377261073 has 2 divisors, whose sum is σ = 74377261074. Its totient is φ = 74377261072.

The previous prime is 74377261069. The next prime is 74377261141. The reversal of 74377261073 is 37016277347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38053475329 + 36323785744 = 195073^2 + 190588^2 .

It is a cyclic number.

It is not a de Polignac number, because 74377261073 - 2² = 74377261069 is a prime.

It is a super-2 number, since 2×74377261073² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74377261003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37188630536 + 37188630537.

It is an arithmetic number, because the mean of its divisors is an integer number (37188630537).

Almost surely, 2^74377261073 is an apocalyptic number.

It is an amenable number.

74377261073 is a deficient number, since it is larger than the sum of its proper divisors (1).

74377261073 is an equidigital number, since it uses as much as digits as its factorization.

74377261073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1037232, while the sum is 47.

The spelling of 74377261073 in words is "seventy-four billion, three hundred seventy-seven million, two hundred sixty-one thousand, seventy-three".