74801009785 has 8 divisors (see below), whose sum is σ = 92856426120. Its totient is φ = 57777331584.

The previous prime is 74801009737. The next prime is 74801009827. The reversal of 74801009785 is 58790010847.

It can be written as a sum of positive squares in 4 ways, for example, as 3152710201 + 71648299584 = 56149^2 + 267672^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74801009785 - 2²¹ = 74798912633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257934372 + ... + 257934661.

It is an arithmetic number, because the mean of its divisors is an integer number (11607053265).

Almost surely, 2^74801009785 is an apocalyptic number.

It is an amenable number.

74801009785 is a deficient number, since it is larger than the sum of its proper divisors (18055416335).

74801009785 is a wasteful number, since it uses less digits than its factorization.

74801009785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515869067.

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 74801009785 in words is "seventy-four billion, eight hundred one million, nine thousand, seven hundred eighty-five".