1896143347450 has 48 divisors (see below), whose sum is σ = 3847640012064. Its totient is φ = 689472123200.

The previous prime is 1896143347433. The next prime is 1896143347457. The reversal of 1896143347450 is 547433416981.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 1896143347391 and 1896143347400.

It is not an unprimeable number, because it can be changed into a prime (1896143347457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12589992 + ... + 12739708.

It is an arithmetic number, because the mean of its divisors is an integer number (80159166918).

Almost surely, 2^{1896143347450} is an apocalyptic number.

1896143347450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1896143347450 is an abundant number, since it is smaller than the sum of its proper divisors (1951496664614).

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

1896143347450 is a wasteful number, since it uses less digits than its factorization.

1896143347450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172767 (or 172762 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 1896143347450 in words is "one trillion, eight hundred ninety-six billion, one hundred forty-three million, three hundred forty-seven thousand, four hundred fifty".