2151453240044 has 24 divisors (see below), whose sum is σ = 3849062450688. Its totient is φ = 1051767682640.

The previous prime is 2151453240023. The next prime is 2151453240049. The reversal of 2151453240044 is 4400423541512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2151453239986 and 2151453240013.

It is not an unprimeable number, because it can be changed into a prime (2151453240049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5636102 + ... + 6005709.

It is an arithmetic number, because the mean of its divisors is an integer number (160377602112).

Almost surely, 2^{2151453240044} is an apocalyptic number.

It is an amenable number.

2151453240044 is a deficient number, since it is larger than the sum of its proper divisors (1697609210644).

2151453240044 is a wasteful number, since it uses less digits than its factorization.

2151453240044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642845 (or 11642843 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 2151453240044 its reverse (4400423541512), we get a palindrome (6551876781556).

The spelling of 2151453240044 in words is "two trillion, one hundred fifty-one billion, four hundred fifty-three million, two hundred forty thousand, forty-four".