1292878045344 has 48 divisors (see below), whose sum is σ = 3541361608512. Its totient is φ = 412221984768.

The previous prime is 1292878045343. The next prime is 1292878045373. The reversal of 1292878045344 is 4435408782921.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1292878045343) 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, 292769089 + ... + 292773504.

It is an arithmetic number, because the mean of its divisors is an integer number (73778366844).

Almost surely, 2^{1292878045344} is an apocalyptic number.

It is an amenable number.

1292878045344 is an abundant number, since it is smaller than the sum of its proper divisors (2248483563168).

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

1292878045344 is a wasteful number, since it uses less digits than its factorization.

1292878045344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585542629 (or 585542621 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 1292878045344 in words is "one trillion, two hundred ninety-two billion, eight hundred seventy-eight million, forty-five thousand, three hundred forty-four".