2154453125642 has 16 divisors (see below), whose sum is σ = 3270707143200. Its totient is φ = 1064218138032.

The previous prime is 2154453125641. The next prime is 2154453125647. The reversal of 2154453125642 is 2465213544512.

It is a junction number, because it is equal to n+sod(n) for n = 2154453125593 and 2154453125602.

It is not an unprimeable number, because it can be changed into a prime (2154453125641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6505484 + ... + 6828632.

It is an arithmetic number, because the mean of its divisors is an integer number (204419196450).

Almost surely, 2^{2154453125642} is an apocalyptic number.

2154453125642 is a deficient number, since it is larger than the sum of its proper divisors (1116254017558).

2154453125642 is a wasteful number, since it uses less digits than its factorization.

2154453125642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363397.

The product of its digits is 1152000, while the sum is 44.

The spelling of 2154453125642 in words is "two trillion, one hundred fifty-four billion, four hundred fifty-three million, one hundred twenty-five thousand, six hundred forty-two".