78862283409 has 32 divisors (see below), whose sum is σ = 129597879040. Its totient is φ = 41538915072.

The previous prime is 78862283393. The next prime is 78862283429. The reversal of 78862283409 is 90438226887.

It is a happy number.

It is not a de Polignac number, because 78862283409 - 2⁴ = 78862283393 is a prime.

It is a super-2 number, since 2×78862283409² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78862283429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10162 + ... + 397275.

It is an arithmetic number, because the mean of its divisors is an integer number (4049933720).

Almost surely, 2^78862283409 is an apocalyptic number.

It is an amenable number.

78862283409 is a deficient number, since it is larger than the sum of its proper divisors (50735595631).

78862283409 is a wasteful number, since it uses less digits than its factorization.

78862283409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408169.

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 78862283409 in words is "seventy-eight billion, eight hundred sixty-two million, two hundred eighty-three thousand, four hundred nine".