2699798079744 has 144 divisors (see below), whose sum is σ = 8403977131200. Its totient is φ = 852567773184.

The previous prime is 2699798079743. The next prime is 2699798079749. The reversal of 2699798079744 is 4479708979962.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (2699798079743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10147509 + ... + 10410164.

It is an arithmetic number, because the mean of its divisors is an integer number (58360952300).

Almost surely, 2^{2699798079744} is an apocalyptic number.

2699798079744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2699798079744 is an abundant number, since it is smaller than the sum of its proper divisors (5704179051456).

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

2699798079744 is a wasteful number, since it uses less digits than its factorization.

2699798079744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20557717 (or 20557697 counting only the distinct ones).

The product of its (nonzero) digits is 3456649728, while the sum is 81.

The spelling of 2699798079744 in words is "two trillion, six hundred ninety-nine billion, seven hundred ninety-eight million, seventy-nine thousand, seven hundred forty-four".