77465777830 has 16 divisors (see below), whose sum is σ = 159358171680. Its totient is φ = 26559695232.

The previous prime is 77465777821. The next prime is 77465777839. The reversal of 77465777830 is 3877756477.

It is an interprime number because it is at equal distance from previous prime (77465777821) and next prime (77465777839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77465777839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553326915 + ... + 553327054.

It is an arithmetic number, because the mean of its divisors is an integer number (9959885730).

Almost surely, 2^77465777830 is an apocalyptic number.

77465777830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77465777830 is an abundant number, since it is smaller than the sum of its proper divisors (81892393850).

77465777830 is a wasteful number, since it uses less digits than its factorization.

77465777830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106653983.

The product of its (nonzero) digits is 48404160, while the sum is 61.

The spelling of 77465777830 in words is "seventy-seven billion, four hundred sixty-five million, seven hundred seventy-seven thousand, eight hundred thirty".