74777234321 has 8 divisors (see below), whose sum is σ = 76839314664. Its totient is φ = 72717315840.

The previous prime is 74777234267. The next prime is 74777234327. The reversal of 74777234321 is 12343277747.

It can be written as a sum of positive squares in 4 ways, for example, as 445210000 + 74332024321 = 21100^2 + 272639^2 .

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 74777234321 - 2¹⁴ = 74777217937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74777234327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470210 + ... + 608811.

It is an arithmetic number, because the mean of its divisors is an integer number (9604914333).

Almost surely, 2^74777234321 is an apocalyptic number.

It is an amenable number.

74777234321 is a deficient number, since it is larger than the sum of its proper divisors (2062080343).

74777234321 is a wasteful number, since it uses less digits than its factorization.

74777234321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080931.

The product of its digits is 1382976, while the sum is 47.

The spelling of 74777234321 in words is "seventy-four billion, seven hundred seventy-seven million, two hundred thirty-four thousand, three hundred twenty-one".