1386811421250 has 160 divisors (see below), whose sum is σ = 3618569687040. Its totient is φ = 353545896000.

The previous prime is 1386811421179. The next prime is 1386811421311. The reversal of 1386811421250 is 521241186831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 229335727 + ... + 229341773.

It is an arithmetic number, because the mean of its divisors is an integer number (22616060544).

Almost surely, 2^{1386811421250} is an apocalyptic number.

1386811421250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386811421250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809284843520).

1386811421250 is an abundant number, since it is smaller than the sum of its proper divisors (2231758265790).

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

1386811421250 is a wasteful number, since it uses less digits than its factorization.

1386811421250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754 (or 8739 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 1386811421250 in words is "one trillion, three hundred eighty-six billion, eight hundred eleven million, four hundred twenty-one thousand, two hundred fifty".