2151534515044 has 12 divisors (see below), whose sum is σ = 3765195797104. Its totient is φ = 1075764287304.

The previous prime is 2151534515041. The next prime is 2151534515051. The reversal of 2151534515044 is 4405154351512.

It is a junction number, because it is equal to n+sod(n) for n = 2151534514988 and 2151534515006.

It is not an unprimeable number, because it can be changed into a prime (2151534515041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2076007 + ... + 2934769.

Almost surely, 2^{2151534515044} is an apocalyptic number.

It is an amenable number.

2151534515044 is a deficient number, since it is larger than the sum of its proper divisors (1613661282060).

2151534515044 is a wasteful number, since it uses less digits than its factorization.

2151534515044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485114 (or 1485112 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 2151534515044 its reverse (4405154351512), we get a palindrome (6556688866556).

The spelling of 2151534515044 in words is "two trillion, one hundred fifty-one billion, five hundred thirty-four million, five hundred fifteen thousand, forty-four".