77234552430 has 64 divisors (see below), whose sum is σ = 213143090688. Its totient is φ = 17545299840.

The previous prime is 77234552399. The next prime is 77234552431. The reversal of 77234552430 is 3425543277.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77234552431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1093941 + ... + 1162400.

It is an arithmetic number, because the mean of its divisors is an integer number (3330360792).

Almost surely, 2^77234552430 is an apocalyptic number.

77234552430 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77234552430 is an abundant number, since it is smaller than the sum of its proper divisors (135908538258).

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

77234552430 is a wasteful number, since it uses less digits than its factorization.

77234552430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256521.

The product of its (nonzero) digits is 705600, while the sum is 42.

The spelling of 77234552430 in words is "seventy-seven billion, two hundred thirty-four million, five hundred fifty-two thousand, four hundred thirty".