1216274626723 has 8 divisors (see below), whose sum is σ = 1310207328416. Its totient is φ = 1122395227200.

The previous prime is 1216274626717. The next prime is 1216274626757. The reversal of 1216274626723 is 3276264726121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1216274626723 - 2⁵ = 1216274626691 is a prime.

It is a super-2 number, since 2×1216274626723² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1216274626783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13278138 + ... + 13369423.

It is an arithmetic number, because the mean of its divisors is an integer number (163775916052).

Almost surely, 2^{1216274626723} is an apocalyptic number.

1216274626723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1216274626723 is a deficient number, since it is larger than the sum of its proper divisors (93932701693).

1216274626723 is a wasteful number, since it uses less digits than its factorization.

1216274626723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26651085.

The product of its digits is 2032128, while the sum is 49.

The spelling of 1216274626723 in words is "one trillion, two hundred sixteen billion, two hundred seventy-four million, six hundred twenty-six thousand, seven hundred twenty-three".