6409278502 has 16 divisors (see below), whose sum is σ = 10491468624. Its totient is φ = 2912320000.

The previous prime is 6409278467. The next prime is 6409278517. The reversal of 6409278502 is 2058729046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19002 + ... + 114802.

It is an arithmetic number, because the mean of its divisors is an integer number (655716789).

Almost surely, 2^6409278502 is an apocalyptic number.

6409278502 is a deficient number, since it is larger than the sum of its proper divisors (4082190122).

6409278502 is a wasteful number, since it uses less digits than its factorization.

6409278502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98855.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 6409278502 is about 80057.9696345092. The cubic root of 6409278502 is about 1857.5323291882.

The spelling of 6409278502 in words is "six billion, four hundred nine million, two hundred seventy-eight thousand, five hundred two".