77474340807 has 8 divisors (see below), whose sum is σ = 103357259376. Its totient is φ = 51620491392.

The previous prime is 77474340799. The next prime is 77474340833. The reversal of 77474340807 is 70804347477.

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

It is not a de Polignac number, because 77474340807 - 2³ = 77474340799 is a prime.

It is a super-2 number, since 2×77474340807² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77474340807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77474340847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7261068 + ... + 7271729.

It is an arithmetic number, because the mean of its divisors is an integer number (12919657422).

Almost surely, 2^77474340807 is an apocalyptic number.

77474340807 is a deficient number, since it is larger than the sum of its proper divisors (25882918569).

77474340807 is a wasteful number, since it uses less digits than its factorization.

77474340807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14534577.

The product of its (nonzero) digits is 3687936, while the sum is 51.

The spelling of 77474340807 in words is "seventy-seven billion, four hundred seventy-four million, three hundred forty thousand, eight hundred seven".