2054057021690 has 32 divisors (see below), whose sum is σ = 3858491154816. Its totient is φ = 785811216960.

The previous prime is 2054057021657. The next prime is 2054057021711. The reversal of 2054057021690 is 961207504502.

It is a super-2 number, since 2×2054057021690² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551860 + ... + 2552720.

It is an arithmetic number, because the mean of its divisors is an integer number (120577848588).

Almost surely, 2^{2054057021690} is an apocalyptic number.

2054057021690 is a deficient number, since it is larger than the sum of its proper divisors (1804434133126).

2054057021690 is a wasteful number, since it uses less digits than its factorization.

2054057021690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009814.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 2054057021690 in words is "two trillion, fifty-four billion, fifty-seven million, twenty-one thousand, six hundred ninety".