77253537000 has 64 divisors (see below), whose sum is σ = 241031044800. Its totient is φ = 20600942400.

The previous prime is 77253536981. The next prime is 77253537007. The reversal of 77253537000 is 73535277.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77253537000.

It is not an unprimeable number, because it can be changed into a prime (77253537007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12872590 + ... + 12878589.

It is an arithmetic number, because the mean of its divisors is an integer number (3766110075).

Almost surely, 2^77253537000 is an apocalyptic number.

It is an amenable number.

77253537000 is an abundant number, since it is smaller than the sum of its proper divisors (163777507800).

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

77253537000 is a wasteful number, since it uses less digits than its factorization.

77253537000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25751203 (or 25751189 counting only the distinct ones).

The product of its (nonzero) digits is 154350, while the sum is 39.

The spelling of 77253537000 in words is "seventy-seven billion, two hundred fifty-three million, five hundred thirty-seven thousand".