1128261535928 has 8 divisors (see below), whose sum is σ = 2115490379880. Its totient is φ = 564130767960.

The previous prime is 1128261535883. The next prime is 1128261535987. The reversal of 1128261535928 is 8295351628211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1128261535928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70516345988 + ... + 70516346003.

It is an arithmetic number, because the mean of its divisors is an integer number (264436297485).

Almost surely, 2^{1128261535928} is an apocalyptic number.

It is an amenable number.

1128261535928 is a deficient number, since it is larger than the sum of its proper divisors (987228843952).

1128261535928 is a wasteful number, since it uses less digits than its factorization.

1128261535928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141032691997 (or 141032691993 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 53.

The spelling of 1128261535928 in words is "one trillion, one hundred twenty-eight billion, two hundred sixty-one million, five hundred thirty-five thousand, nine hundred twenty-eight".