77354407326321 has 48 divisors (see below), whose sum is σ = 116124839550720. Its totient is φ = 51457379153040.

The previous prime is 77354407326293. The next prime is 77354407326323. The reversal of 77354407326321 is 12362370445377.

77354407326321 is a `hidden beast` number, since 7 + 7 + 3 + 544 + 0 + 7 + 32 + 63 + 2 + 1 = 666.

It is not a de Polignac number, because 77354407326321 - 2⁷ = 77354407326193 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77354407326323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243730066 + ... + 244047236.

It is an arithmetic number, because the mean of its divisors is an integer number (2419267490640).

Almost surely, 2^{77354407326321} is an apocalyptic number.

It is an amenable number.

77354407326321 is a deficient number, since it is larger than the sum of its proper divisors (38770432224399).

77354407326321 is a wasteful number, since it uses less digits than its factorization.

77354407326321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319368 (or 319356 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 54.

The spelling of 77354407326321 in words is "seventy-seven trillion, three hundred fifty-four billion, four hundred seven million, three hundred twenty-six thousand, three hundred twenty-one".