2778801651151 has 8 divisors (see below), whose sum is σ = 2779398568800. Its totient is φ = 2778204818400.

The previous prime is 2778801651137. The next prime is 2778801651179. The reversal of 2778801651151 is 1511561088772.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2778801651151 - 2¹⁹ = 2778801126863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778801651181) 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, 174113310 + ... + 174129268.

It is an arithmetic number, because the mean of its divisors is an integer number (347424821100).

Almost surely, 2^{2778801651151} is an apocalyptic number.

2778801651151 is a deficient number, since it is larger than the sum of its proper divisors (596917649).

2778801651151 is a wasteful number, since it uses less digits than its factorization.

2778801651151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42449.

The product of its (nonzero) digits is 940800, while the sum is 52.

The spelling of 2778801651151 in words is "two trillion, seven hundred seventy-eight billion, eight hundred one million, six hundred fifty-one thousand, one hundred fifty-one".