74520208379 has 2 divisors, whose sum is σ = 74520208380. Its totient is φ = 74520208378.

The previous prime is 74520208349. The next prime is 74520208417. The reversal of 74520208379 is 97380202547.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97380202547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74520208379 - 2²⁸ = 74251772923 is a prime.

It is a super-2 number, since 2×74520208379² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74520208349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37260104189 + 37260104190.

It is an arithmetic number, because the mean of its divisors is an integer number (37260104190).

Almost surely, 2^74520208379 is an apocalyptic number.

74520208379 is a deficient number, since it is larger than the sum of its proper divisors (1).

74520208379 is an equidigital number, since it uses as much as digits as its factorization.

74520208379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 74520208379 in words is "seventy-four billion, five hundred twenty million, two hundred eight thousand, three hundred seventy-nine".