1946359311990 has 128 divisors (see below), whose sum is σ = 4732934381568. Its totient is φ = 512230417920.

The previous prime is 1946359311937. The next prime is 1946359311997. The reversal of 1946359311990 is 991139536491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946359311997) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 788956737 + ... + 788959203.

It is an arithmetic number, because the mean of its divisors is an integer number (36976049856).

Almost surely, 2^{1946359311990} is an apocalyptic number.

1946359311990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1946359311990 is an abundant number, since it is smaller than the sum of its proper divisors (2786575069578).

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

1946359311990 is a wasteful number, since it uses less digits than its factorization.

1946359311990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702.

The product of its (nonzero) digits is 7085880, while the sum is 60.

The spelling of 1946359311990 in words is "one trillion, nine hundred forty-six billion, three hundred fifty-nine million, three hundred eleven thousand, nine hundred ninety".