1949203223016 has 128 divisors (see below), whose sum is σ = 5736409958400. Its totient is φ = 540360979200.

The previous prime is 1949203222999. The next prime is 1949203223027. The reversal of 1949203223016 is 6103223029491.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 197370 + ... + 1984278.

It is an arithmetic number, because the mean of its divisors is an integer number (44815702800).

Almost surely, 2^{1949203223016} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1949203223016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2868204979200).

1949203223016 is an abundant number, since it is smaller than the sum of its proper divisors (3787206735384).

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

1949203223016 is a wasteful number, since it uses less digits than its factorization.

1949203223016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787119 (or 1787115 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 1949203223016 in words is "one trillion, nine hundred forty-nine billion, two hundred three million, two hundred twenty-three thousand, sixteen".