4040078667 has 8 divisors (see below), whose sum is σ = 5387215680. Its totient is φ = 2693163720.

The previous prime is 4040078663. The next prime is 4040078671. The reversal of 4040078667 is 7668700404.

It is an interprime number because it is at equal distance from previous prime (4040078663) and next prime (4040078671).

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

It is not a de Polignac number, because 4040078667 - 2² = 4040078663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4040078663) 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, 7009 + ... + 90162.

It is an arithmetic number, because the mean of its divisors is an integer number (673401960).

Almost surely, 2^4040078667 is an apocalyptic number.

4040078667 is a deficient number, since it is larger than the sum of its proper divisors (1347137013).

4040078667 is a wasteful number, since it uses less digits than its factorization.

4040078667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111033.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 4040078667 is about 63561.6131560551. The cubic root of 4040078667 is about 1592.6851858281.

The spelling of 4040078667 in words is "four billion, forty million, seventy-eight thousand, six hundred sixty-seven".