1011877254940 has 24 divisors (see below), whose sum is σ = 2124961146000. Its totient is φ = 404747299968.

The previous prime is 1011877254889. The next prime is 1011877254943. The reversal of 1011877254940 is 494527781101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011877254943) 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, 4197811 + ... + 4432309.

It is an arithmetic number, because the mean of its divisors is an integer number (88540047750).

Almost surely, 2^{1011877254940} is an apocalyptic number.

1011877254940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011877254940 is an abundant number, since it is smaller than the sum of its proper divisors (1113083891060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011877254940 is a wasteful number, since it uses less digits than its factorization.

1011877254940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450261 (or 450259 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 1011877254940 in words is "one trillion, eleven billion, eight hundred seventy-seven million, two hundred fifty-four thousand, nine hundred forty".