1115487728623 has 2 divisors, whose sum is σ = 1115487728624. Its totient is φ = 1115487728622.

The previous prime is 1115487728609. The next prime is 1115487728699. The reversal of 1115487728623 is 3268277845111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115487728623 is a prime.

It is a super-2 number, since 2×1115487728623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115487728423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557743864311 + 557743864312.

It is an arithmetic number, because the mean of its divisors is an integer number (557743864312).

Almost surely, 2^{1115487728623} is an apocalyptic number.

1115487728623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115487728623 is an equidigital number, since it uses as much as digits as its factorization.

1115487728623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 55.

The spelling of 1115487728623 in words is "one trillion, one hundred fifteen billion, four hundred eighty-seven million, seven hundred twenty-eight thousand, six hundred twenty-three".