1001091259400 has 48 divisors (see below), whose sum is σ = 2340540262800. Its totient is φ = 398199414080.

The previous prime is 1001091259393. The next prime is 1001091259409. The reversal of 1001091259400 is 49521901001.

It is not an unprimeable number, because it can be changed into a prime (1001091259409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13945922 + ... + 14017521.

It is an arithmetic number, because the mean of its divisors is an integer number (48761255475).

Almost surely, 2^{1001091259400} is an apocalyptic number.

1001091259400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001091259400 is an abundant number, since it is smaller than the sum of its proper divisors (1339449003400).

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

1001091259400 is a wasteful number, since it uses less digits than its factorization.

1001091259400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27963638 (or 27963629 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 1001091259400 in words is "one trillion, one billion, ninety-one million, two hundred fifty-nine thousand, four hundred".