2151405124140 has 24 divisors (see below), whose sum is σ = 6023934347760. Its totient is φ = 573708033088.

The previous prime is 2151405124117. The next prime is 2151405124159. The reversal of 2151405124140 is 414215041512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2151405124098 and 2151405124107.

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, 17928375975 + ... + 17928376094.

It is an arithmetic number, because the mean of its divisors is an integer number (250997264490).

Almost surely, 2^{2151405124140} is an apocalyptic number.

2151405124140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151405124140 is an abundant number, since it is smaller than the sum of its proper divisors (3872529223620).

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

2151405124140 is a wasteful number, since it uses less digits than its factorization.

2151405124140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35856752081 (or 35856752079 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 2151405124140 in words is "two trillion, one hundred fifty-one billion, four hundred five million, one hundred twenty-four thousand, one hundred forty".