2135381403400 has 96 divisors (see below), whose sum is σ = 5717327014080. Its totient is φ = 726541920000.

The previous prime is 2135381403383. The next prime is 2135381403409. The reversal of 2135381403400 is 43041835312.

It is not an unprimeable number, because it can be changed into a prime (2135381403409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5638251 + ... + 6005050.

It is an arithmetic number, because the mean of its divisors is an integer number (59555489730).

Almost surely, 2^{2135381403400} is an apocalyptic number.

2135381403400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135381403400 is an abundant number, since it is smaller than the sum of its proper divisors (3581945610680).

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

2135381403400 is a wasteful number, since it uses less digits than its factorization.

2135381403400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11643455 (or 11643446 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 2135381403400 in words is "two trillion, one hundred thirty-five billion, three hundred eighty-one million, four hundred three thousand, four hundred".