1878779243253 has 8 divisors (see below), whose sum is σ = 2732769808416. Its totient is φ = 1138654086800.

The previous prime is 1878779243213. The next prime is 1878779243267. The reversal of 1878779243253 is 3523429778781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1878779243253 - 2⁶ = 1878779243189 is a prime.

It is a super-2 number, since 2×1878779243253² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878779243213) 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, 28466352138 + ... + 28466352203.

It is an arithmetic number, because the mean of its divisors is an integer number (341596226052).

Almost surely, 2^{1878779243253} is an apocalyptic number.

It is an amenable number.

1878779243253 is a deficient number, since it is larger than the sum of its proper divisors (853990565163).

1878779243253 is a wasteful number, since it uses less digits than its factorization.

1878779243253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56932704355.

The product of its digits is 142248960, while the sum is 66.

The spelling of 1878779243253 in words is "one trillion, eight hundred seventy-eight billion, seven hundred seventy-nine million, two hundred forty-three thousand, two hundred fifty-three".