1118787255851 has 8 divisors (see below), whose sum is σ = 1122522660864. Its totient is φ = 1115053992360.

The previous prime is 1118787255847. The next prime is 1118787255869. The reversal of 1118787255851 is 1585527878111.

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

It is a cyclic number.

It is not a de Polignac number, because 1118787255851 - 2² = 1118787255847 is a prime.

It is a super-2 number, since 2×1118787255851² (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 (1118787255821) 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, 514646 + ... + 1581908.

It is an arithmetic number, because the mean of its divisors is an integer number (140315332608).

Almost surely, 2^{1118787255851} is an apocalyptic number.

1118787255851 is a deficient number, since it is larger than the sum of its proper divisors (3735405013).

1118787255851 is a wasteful number, since it uses less digits than its factorization.

1118787255851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070761.

The product of its digits is 6272000, while the sum is 59.

The spelling of 1118787255851 in words is "one trillion, one hundred eighteen billion, seven hundred eighty-seven million, two hundred fifty-five thousand, eight hundred fifty-one".