2801278742 has 8 divisors (see below), whose sum is σ = 4202810976. Its totient is φ = 1400341752.

The previous prime is 2801278729. The next prime is 2801278757. The reversal of 2801278742 is 2478721082.

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

It is a super-2 number, since 2×2801278742² = 15694325180762205128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2801278742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136853 + ... + 155984.

It is an arithmetic number, because the mean of its divisors is an integer number (525351372).

Almost surely, 2^2801278742 is an apocalyptic number.

2801278742 is a deficient number, since it is larger than the sum of its proper divisors (1401532234).

2801278742 is a wasteful number, since it uses less digits than its factorization.

2801278742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297622.

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 2801278742 is about 52927.1078182060. The cubic root of 2801278742 is about 1409.6742774931.

The spelling of 2801278742 in words is "two billion, eight hundred one million, two hundred seventy-eight thousand, seven hundred forty-two".