2151213024415 has 16 divisors (see below), whose sum is σ = 3177176159808. Its totient is φ = 1361646925056.

The previous prime is 2151213024383. The next prime is 2151213024419. The reversal of 2151213024415 is 5144203121512.

It is a cyclic number.

It is not a de Polignac number, because 2151213024415 - 2⁵ = 2151213024383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151213024419) 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, 2363969902 + ... + 2363970811.

It is an arithmetic number, because the mean of its divisors is an integer number (198573509988).

Almost surely, 2^{2151213024415} is an apocalyptic number.

2151213024415 is a deficient number, since it is larger than the sum of its proper divisors (1025963135393).

2151213024415 is a wasteful number, since it uses less digits than its factorization.

2151213024415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727940738.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 2151213024415 its reverse (5144203121512), we get a palindrome (7295416145927).

The spelling of 2151213024415 in words is "two trillion, one hundred fifty-one billion, two hundred thirteen million, twenty-four thousand, four hundred fifteen".