101290869840 has 40 divisors (see below), whose sum is σ = 314001697248. Its totient is φ = 27010898560.

The previous prime is 101290869793. The next prime is 101290869851. The reversal of 101290869840 is 48968092101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 101290869840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211022406 + ... + 211022885.

Almost surely, 2^101290869840 is an apocalyptic number.

101290869840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101290869840 is an abundant number, since it is smaller than the sum of its proper divisors (212710827408).

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

101290869840 is a wasteful number, since it uses less digits than its factorization.

101290869840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422045307 (or 422045301 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 101290869840 in words is "one hundred one billion, two hundred ninety million, eight hundred sixty-nine thousand, eight hundred forty".