2098015778145 has 128 divisors (see below), whose sum is σ = 3891074457600. Its totient is φ = 945549158400.

The previous prime is 2098015778057. The next prime is 2098015778219. The reversal of 2098015778145 is 5418775108902.

It is a happy number.

It is not a de Polignac number, because 2098015778145 - 2¹⁷ = 2098015647073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1164916245 + ... + 1164918045.

It is an arithmetic number, because the mean of its divisors is an integer number (30399019200).

Almost surely, 2^{2098015778145} is an apocalyptic number.

2098015778145 is the 1182657-th pentagonal number and also the 836265-th octagonal number.

It is an amenable number.

2098015778145 is a deficient number, since it is larger than the sum of its proper divisors (1793058679455).

2098015778145 is a wasteful number, since it uses less digits than its factorization.

2098015778145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495.

The product of its (nonzero) digits is 5644800, while the sum is 57.

The spelling of 2098015778145 in words is "two trillion, ninety-eight billion, fifteen million, seven hundred seventy-eight thousand, one hundred forty-five".