1128957215355 has 48 divisors (see below), whose sum is σ = 1994033280096. Its totient is φ = 590675205120.

The previous prime is 1128957215341. The next prime is 1128957215357. The reversal of 1128957215355 is 5535127598211.

1128957215355 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 9 + 572 + 15 + 3 + 55 = 666.

It is not a de Polignac number, because 1128957215355 - 2⁹ = 1128957214843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1128957215357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22324579 + ... + 22375091.

It is an arithmetic number, because the mean of its divisors is an integer number (41542360002).

Almost surely, 2^{1128957215355} is an apocalyptic number.

1128957215355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1128957215355 is a deficient number, since it is larger than the sum of its proper divisors (865076064741).

1128957215355 is a wasteful number, since it uses less digits than its factorization.

1128957215355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59948 (or 59945 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 54.

The spelling of 1128957215355 in words is "one trillion, one hundred twenty-eight billion, nine hundred fifty-seven million, two hundred fifteen thousand, three hundred fifty-five".