2749638161292 has 96 divisors (see below), whose sum is σ = 7041931271424. Its totient is φ = 828125510400.

The previous prime is 2749638161269. The next prime is 2749638161299. The reversal of 2749638161292 is 2921618369472.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2749638161299) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 72759442 + ... + 72797222.

It is an arithmetic number, because the mean of its divisors is an integer number (73353450744).

Almost surely, 2^{2749638161292} is an apocalyptic number.

2749638161292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749638161292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3520965635712).

2749638161292 is an abundant number, since it is smaller than the sum of its proper divisors (4292293110132).

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

2749638161292 is a wasteful number, since it uses less digits than its factorization.

2749638161292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41159 (or 41157 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The spelling of 2749638161292 in words is "two trillion, seven hundred forty-nine billion, six hundred thirty-eight million, one hundred sixty-one thousand, two hundred ninety-two".