2101142786028 has 48 divisors (see below), whose sum is σ = 5759776033536. Its totient is φ = 587732247360.

The previous prime is 2101142786023. The next prime is 2101142786059. The reversal of 2101142786028 is 8206872411012.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2101142786023) 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, 612219376 + ... + 612222807.

It is an arithmetic number, because the mean of its divisors is an integer number (119995334032).

Almost surely, 2^{2101142786028} is an apocalyptic number.

It is an amenable number.

2101142786028 is an abundant number, since it is smaller than the sum of its proper divisors (3658633247508).

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

2101142786028 is a wasteful number, since it uses less digits than its factorization.

2101142786028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224442214 (or 1224442212 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 2101142786028 in words is "two trillion, one hundred one billion, one hundred forty-two million, seven hundred eighty-six thousand, twenty-eight".