74907762149 has 48 divisors (see below), whose sum is σ = 87280839360. Its totient is φ = 63678182400.

The previous prime is 74907762119. The next prime is 74907762169. The reversal of 74907762149 is 94126770947.

It is not a de Polignac number, because 74907762149 - 2²⁴ = 74890984933 is a prime.

It is a super-2 number, since 2×74907762149² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74907762094 and 74907762103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74907762119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87406529 + ... + 87407385.

It is an arithmetic number, because the mean of its divisors is an integer number (1818350820).

Almost surely, 2^74907762149 is an apocalyptic number.

It is an amenable number.

74907762149 is a deficient number, since it is larger than the sum of its proper divisors (12373077211).

74907762149 is a wasteful number, since it uses less digits than its factorization.

74907762149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 56.

The spelling of 74907762149 in words is "seventy-four billion, nine hundred seven million, seven hundred sixty-two thousand, one hundred forty-nine".