40258000778 has 8 divisors (see below), whose sum is σ = 61859854980. Its totient is φ = 19638049120.

The previous prime is 40258000733. The next prime is 40258000787. The reversal of 40258000778 is 87700085204.

40258000778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37739667289 + 2518333489 = 194267^2 + 50183^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245475533 + ... + 245475696.

Almost surely, 2^40258000778 is an apocalyptic number.

40258000778 is a deficient number, since it is larger than the sum of its proper divisors (21601854202).

40258000778 is a wasteful number, since it uses less digits than its factorization.

40258000778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490951272.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 40258000778 in words is "forty billion, two hundred fifty-eight million, seven hundred seventy-eight", and thus it is an aban number.