77954526340 has 24 divisors (see below), whose sum is σ = 168985297152. Its totient is φ = 30175945440.

The previous prime is 77954526319. The next prime is 77954526343. The reversal of 77954526340 is 4362545977.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77954526343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62865934 + ... + 62867173.

It is an arithmetic number, because the mean of its divisors is an integer number (7041054048).

Almost surely, 2^77954526340 is an apocalyptic number.

It is an amenable number.

77954526340 is an abundant number, since it is smaller than the sum of its proper divisors (91030770812).

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

77954526340 is a wasteful number, since it uses less digits than its factorization.

77954526340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125733147 (or 125733145 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 77954526340 in words is "seventy-seven billion, nine hundred fifty-four million, five hundred twenty-six thousand, three hundred forty".