77471673522 has 64 divisors (see below), whose sum is σ = 170577601920. Its totient is φ = 23347444736.

The previous prime is 77471673431. The next prime is 77471673523. The reversal of 77471673522 is 22537617477.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (77471673523) 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, 516253 + ... + 649199.

It is an arithmetic number, because the mean of its divisors is an integer number (2665275030).

Almost surely, 2^77471673522 is an apocalyptic number.

77471673522 is an abundant number, since it is smaller than the sum of its proper divisors (93105928398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77471673522 is a wasteful number, since it uses less digits than its factorization.

77471673522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133195.

The product of its digits is 3457440, while the sum is 51.

The spelling of 77471673522 in words is "seventy-seven billion, four hundred seventy-one million, six hundred seventy-three thousand, five hundred twenty-two".