101025878940 has 96 divisors (see below), whose sum is σ = 359203138560. Its totient is φ = 23091628608.

The previous prime is 101025878923. The next prime is 101025878959. The reversal of 101025878940 is 49878520101.

101025878940 is a `hidden beast` number, since 10 + 10 + 2 + 587 + 8 + 9 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13359432 + ... + 13366991.

It is an arithmetic number, because the mean of its divisors is an integer number (3741699360).

Almost surely, 2^101025878940 is an apocalyptic number.

101025878940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101025878940 is an abundant number, since it is smaller than the sum of its proper divisors (258177259620).

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

101025878940 is a wasteful number, since it uses less digits than its factorization.

101025878940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26726448 (or 26726440 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 101025878940 in words is "one hundred one billion, twenty-five million, eight hundred seventy-eight thousand, nine hundred forty".