78253861410 has 96 divisors (see below), whose sum is σ = 210175999488. Its totient is φ = 20179860480.

The previous prime is 78253861373. The next prime is 78253861487. The reversal of 78253861410 is 1416835287.

78253861410 is a `hidden beast` number, since 7 + 8 + 25 + 3 + 8 + 614 + 1 + 0 = 666.

It is a super-2 number, since 2×78253861410² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4128114 + ... + 4147026.

It is an arithmetic number, because the mean of its divisors is an integer number (2189333328).

Almost surely, 2^78253861410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78253861410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105087999744).

78253861410 is an abundant number, since it is smaller than the sum of its proper divisors (131922138078).

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

78253861410 is a wasteful number, since it uses less digits than its factorization.

78253861410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20440 (or 20437 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 78253861410 in words is "seventy-eight billion, two hundred fifty-three million, eight hundred sixty-one thousand, four hundred ten".