74904519497 has 4 divisors (see below), whose sum is σ = 78161237760. Its totient is φ = 71647801236.

The previous prime is 74904519491. The next prime is 74904519499. The reversal of 74904519497 is 79491540947.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74904519497 - 2⁶ = 74904519433 is a prime.

It is a super-2 number, since 2×74904519497² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74904519491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628359097 + ... + 1628359142.

It is an arithmetic number, because the mean of its divisors is an integer number (19540309440).

Almost surely, 2^74904519497 is an apocalyptic number.

It is an amenable number.

74904519497 is a deficient number, since it is larger than the sum of its proper divisors (3256718263).

74904519497 is a wasteful number, since it uses less digits than its factorization.

74904519497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256718262.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 74904519497 in words is "seventy-four billion, nine hundred four million, five hundred nineteen thousand, four hundred ninety-seven".