2215938510247 has 36 divisors (see below), whose sum is σ = 2840856432400. Its totient is φ = 1726469024280.

The previous prime is 2215938510241. The next prime is 2215938510287. The reversal of 2215938510247 is 7420158395122.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a de Polignac number, because none of the positive numbers 2^k-2215938510247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 2215938510247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215938510241) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 303258768 + ... + 303266074.

Almost surely, 2^{2215938510247} is an apocalyptic number.

2215938510247 is a deficient number, since it is larger than the sum of its proper divisors (624917922153).

2215938510247 is an frugal number, since it uses more digits than its factorization.

2215938510247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14657 (or 7325 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 2215938510247 in words is "two trillion, two hundred fifteen billion, nine hundred thirty-eight million, five hundred ten thousand, two hundred forty-seven".