78625990853 has 8 divisors (see below), whose sum is σ = 79636761600. Its totient is φ = 77615607888.

The previous prime is 78625990837. The next prime is 78625990967. The reversal of 78625990853 is 35809952687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78625990853 - 2⁴ = 78625990837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78625990253) 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, 322775 + ... + 511307.

It is an arithmetic number, because the mean of its divisors is an integer number (9954595200).

Almost surely, 2^78625990853 is an apocalyptic number.

It is an amenable number.

78625990853 is a deficient number, since it is larger than the sum of its proper divisors (1010770747).

78625990853 is a wasteful number, since it uses less digits than its factorization.

78625990853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193891.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 78625990853 in words is "seventy-eight billion, six hundred twenty-five million, nine hundred ninety thousand, eight hundred fifty-three".