77013400451 has 16 divisors (see below), whose sum is σ = 84922306560. Its totient is φ = 69407483040.

The previous prime is 77013400447. The next prime is 77013400481. The reversal of 77013400451 is 15400431077.

It is a cyclic number.

It is not a de Polignac number, because 77013400451 - 2² = 77013400447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77013400481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309971 + ... + 500108.

It is an arithmetic number, because the mean of its divisors is an integer number (5307644160).

Almost surely, 2^77013400451 is an apocalyptic number.

77013400451 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

77013400451 is a deficient number, since it is larger than the sum of its proper divisors (7908906109).

77013400451 is a wasteful number, since it uses less digits than its factorization.

77013400451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810266.

The product of its (nonzero) digits is 11760, while the sum is 32.

The spelling of 77013400451 in words is "seventy-seven billion, thirteen million, four hundred thousand, four hundred fifty-one".