8260400078 has 32 divisors (see below), whose sum is σ = 14658485760. Its totient is φ = 3415880160.

The previous prime is 8260400069. The next prime is 8260400087. The reversal of 8260400078 is 8700040628.

It is an interprime number because it is at equal distance from previous prime (8260400069) and next prime (8260400087).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718193 + ... + 729603.

It is an arithmetic number, because the mean of its divisors is an integer number (458077680).

Almost surely, 2^8260400078 is an apocalyptic number.

8260400078 is a deficient number, since it is larger than the sum of its proper divisors (6398085682).

8260400078 is a wasteful number, since it uses less digits than its factorization.

8260400078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 8260400078 is about 90886.7431367193. The cubic root of 8260400078 is about 2021.4687287535.

The spelling of 8260400078 in words is "eight billion, two hundred sixty million, four hundred thousand, seventy-eight".