77404377043401 has 32 divisors (see below), whose sum is σ = 107220949321728. Its totient is φ = 49632609660480.

The previous prime is 77404377043381. The next prime is 77404377043423. The reversal of 77404377043401 is 10434077340477.

It is not a de Polignac number, because 77404377043401 - 2¹¹ = 77404377041353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77404377043901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22296871 + ... + 25533491.

It is an arithmetic number, because the mean of its divisors is an integer number (3350654666304).

Almost surely, 2^{77404377043401} is an apocalyptic number.

It is an amenable number.

77404377043401 is a deficient number, since it is larger than the sum of its proper divisors (29816572278327).

77404377043401 is a wasteful number, since it uses less digits than its factorization.

77404377043401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239501.

The product of its (nonzero) digits is 5531904, while the sum is 51.

The spelling of 77404377043401 in words is "seventy-seven trillion, four hundred four billion, three hundred seventy-seven million, forty-three thousand, four hundred one".