1228670515715 has 48 divisors (see below), whose sum is σ = 1611527275584. Its totient is φ = 897401134080.

The previous prime is 1228670515697. The next prime is 1228670515747. The reversal of 1228670515715 is 5175150768221.

It is not a de Polignac number, because 1228670515715 - 2¹² = 1228670511619 is a prime.

It is a super-2 number, since 2×1228670515715² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7991447 + ... + 8143743.

It is an arithmetic number, because the mean of its divisors is an integer number (33573484908).

Almost surely, 2^{1228670515715} is an apocalyptic number.

1228670515715 is a deficient number, since it is larger than the sum of its proper divisors (382856759869).

1228670515715 is a wasteful number, since it uses less digits than its factorization.

1228670515715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152460 (or 152429 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 50.

The spelling of 1228670515715 in words is "one trillion, two hundred twenty-eight billion, six hundred seventy million, five hundred fifteen thousand, seven hundred fifteen".