74821616951 has 2 divisors, whose sum is σ = 74821616952. Its totient is φ = 74821616950.

The previous prime is 74821616927. The next prime is 74821616983. The reversal of 74821616951 is 15961612847.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74821616951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74821616951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74821616921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37410808475 + 37410808476.

It is an arithmetic number, because the mean of its divisors is an integer number (37410808476).

Almost surely, 2^74821616951 is an apocalyptic number.

74821616951 is a deficient number, since it is larger than the sum of its proper divisors (1).

74821616951 is an equidigital number, since it uses as much as digits as its factorization.

74821616951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The spelling of 74821616951 in words is "seventy-four billion, eight hundred twenty-one million, six hundred sixteen thousand, nine hundred fifty-one".