77480084446 has 4 divisors (see below), whose sum is σ = 116220126672. Its totient is φ = 38740042222.

The previous prime is 77480084443. The next prime is 77480084497. The reversal of 77480084446 is 64448008477.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×77480084446² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77480084393 and 77480084402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77480084441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19370021110 + ... + 19370021113.

It is an arithmetic number, because the mean of its divisors is an integer number (29055031668).

Almost surely, 2^77480084446 is an apocalyptic number.

77480084446 is a deficient number, since it is larger than the sum of its proper divisors (38740042226).

77480084446 is a wasteful number, since it uses less digits than its factorization.

77480084446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38740042225.

The product of its (nonzero) digits is 4816896, while the sum is 52.

The spelling of 77480084446 in words is "seventy-seven billion, four hundred eighty million, eighty-four thousand, four hundred forty-six".