74937797261 has 4 divisors (see below), whose sum is σ = 74940667872. Its totient is φ = 74934926652.

The previous prime is 74937797251. The next prime is 74937797303. The reversal of 74937797261 is 16279773947.

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 74937797261 - 2⁶ = 74937797197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74937797194 and 74937797203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74937797201) 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, 1395785 + ... + 1448478.

It is an arithmetic number, because the mean of its divisors is an integer number (18735166968).

Almost surely, 2^74937797261 is an apocalyptic number.

It is an amenable number.

74937797261 is a deficient number, since it is larger than the sum of its proper divisors (2870611).

74937797261 is a wasteful number, since it uses less digits than its factorization.

74937797261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870610.

The product of its digits is 28005264, while the sum is 62.

The spelling of 74937797261 in words is "seventy-four billion, nine hundred thirty-seven million, seven hundred ninety-seven thousand, two hundred sixty-one".