77747919370 has 32 divisors (see below), whose sum is σ = 152680127040. Its totient is φ = 28269843840.

The previous prime is 77747919317. The next prime is 77747919413. The reversal of 77747919370 is 7391974777.

It is a super-3 number, since 3×77747919370³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77747919299 and 77747919308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2897134 + ... + 2923846.

It is an arithmetic number, because the mean of its divisors is an integer number (4771253970).

Almost surely, 2^77747919370 is an apocalyptic number.

77747919370 is a deficient number, since it is larger than the sum of its proper divisors (74932207670).

77747919370 is a wasteful number, since it uses less digits than its factorization.

77747919370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53190.

The product of its (nonzero) digits is 16336404, while the sum is 61.

The spelling of 77747919370 in words is "seventy-seven billion, seven hundred forty-seven million, nine hundred nineteen thousand, three hundred seventy".