2051513989863 has 64 divisors (see below), whose sum is σ = 3090260544000. Its totient is φ = 1202501583360.

The previous prime is 2051513989849. The next prime is 2051513989883. The reversal of 2051513989863 is 3689893151502.

It is not a de Polignac number, because 2051513989863 - 2⁶ = 2051513989799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2051513989797 and 2051513989806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051513989883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9295113 + ... + 9513261.

It is an arithmetic number, because the mean of its divisors is an integer number (48285321000).

Almost surely, 2^{2051513989863} is an apocalyptic number.

2051513989863 is a deficient number, since it is larger than the sum of its proper divisors (1038746554137).

2051513989863 is a wasteful number, since it uses less digits than its factorization.

2051513989863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218352.

The product of its (nonzero) digits is 13996800, while the sum is 60.

The spelling of 2051513989863 in words is "two trillion, fifty-one billion, five hundred thirteen million, nine hundred eighty-nine thousand, eight hundred sixty-three".