7139674400478 has 64 divisors (see below), whose sum is σ = 15132878956800. Its totient is φ = 2241773614080.

The previous prime is 7139674400477. The next prime is 7139674400489. The reversal of 7139674400478 is 8740044769317.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139674400471) 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, 5871598 + ... + 6982478.

It is an arithmetic number, because the mean of its divisors is an integer number (236451233700).

Almost surely, 2^{7139674400478} is an apocalyptic number.

7139674400478 is an abundant number, since it is smaller than the sum of its proper divisors (7993204556322).

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

7139674400478 is a wasteful number, since it uses less digits than its factorization.

7139674400478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111817.

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 7139674400478 in words is "seven trillion, one hundred thirty-nine billion, six hundred seventy-four million, four hundred thousand, four hundred seventy-eight".