77270344340 has 48 divisors (see below), whose sum is σ = 185464629504. Its totient is φ = 26490432000.

The previous prime is 77270344337. The next prime is 77270344363. The reversal of 77270344340 is 4344307277.

It is a super-2 number, since 2×77270344340² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3135065 + ... + 3159615.

It is an arithmetic number, because the mean of its divisors is an integer number (3863846448).

Almost surely, 2^77270344340 is an apocalyptic number.

77270344340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77270344340 is an abundant number, since it is smaller than the sum of its proper divisors (108194285164).

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

77270344340 is a wasteful number, since it uses less digits than its factorization.

77270344340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47048 (or 47046 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 41.

The spelling of 77270344340 in words is "seventy-seven billion, two hundred seventy million, three hundred forty-four thousand, three hundred forty".