2545145044512 has 96 divisors (see below), whose sum is σ = 7635823977600. Its totient is φ = 727147266048.

The previous prime is 2545145044493. The next prime is 2545145044549. The reversal of 2545145044512 is 2154405415452.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2545145044512² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14825664 + ... + 14996352.

It is an arithmetic number, because the mean of its divisors is an integer number (79539833100).

Almost surely, 2^{2545145044512} is an apocalyptic number.

It is an amenable number.

2545145044512 is an abundant number, since it is smaller than the sum of its proper divisors (5090678933088).

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

2545145044512 is a wasteful number, since it uses less digits than its factorization.

2545145044512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192898 (or 192890 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 42.

The spelling of 2545145044512 in words is "two trillion, five hundred forty-five billion, one hundred forty-five million, forty-four thousand, five hundred twelve".