77674275747 has 12 divisors (see below), whose sum is σ = 112221497544. Its totient is φ = 51771163680.

The previous prime is 77674275739. The next prime is 77674275761. The reversal of 77674275747 is 74757247677.

It is a happy number.

It is not a de Polignac number, because 77674275747 - 2³ = 77674275739 is a prime.

It is a super-2 number, since 2×77674275747² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77674275347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 931713 + ... + 1011650.

It is an arithmetic number, because the mean of its divisors is an integer number (9351791462).

Almost surely, 2^77674275747 is an apocalyptic number.

77674275747 is a deficient number, since it is larger than the sum of its proper divisors (34547221797).

77674275747 is a wasteful number, since it uses less digits than its factorization.

77674275747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947810 (or 1947807 counting only the distinct ones).

The product of its digits is 112943040, while the sum is 63.

The spelling of 77674275747 in words is "seventy-seven billion, six hundred seventy-four million, two hundred seventy-five thousand, seven hundred forty-seven".