1243860542754 has 64 divisors (see below), whose sum is σ = 2544453844992. Its totient is φ = 405269827200.

The previous prime is 1243860542713. The next prime is 1243860542761. The reversal of 1243860542754 is 4572450683421.

It is a junction number, because it is equal to n+sod(n) for n = 1243860542697 and 1243860542706.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82822654 + ... + 82837670.

It is an arithmetic number, because the mean of its divisors is an integer number (39757091328).

Almost surely, 2^{1243860542754} is an apocalyptic number.

1243860542754 is an abundant number, since it is smaller than the sum of its proper divisors (1300593302238).

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

1243860542754 is a wasteful number, since it uses less digits than its factorization.

1243860542754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16751.

The product of its (nonzero) digits is 6451200, while the sum is 51.

The spelling of 1243860542754 in words is "one trillion, two hundred forty-three billion, eight hundred sixty million, five hundred forty-two thousand, seven hundred fifty-four".