1945837142208 has 98 divisors (see below), whose sum is σ = 5789257673684. Its totient is φ = 648612365184.

The previous prime is 1945837142189. The next prime is 1945837142237. The reversal of 1945837142208 is 8022417385491.

1945837142208 is a `hidden beast` number, since 1 + 9 + 45 + 8 + 371 + 4 + 220 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 20806366 + ... + 20899677.

Almost surely, 2^{1945837142208} is an apocalyptic number.

1945837142208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1945837142208 is an abundant number, since it is smaller than the sum of its proper divisors (3843420531476).

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

1945837142208 is an frugal number, since it uses more digits than its factorization.

1945837142208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41706073 (or 41706048 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 1945837142208 in words is "one trillion, nine hundred forty-five billion, eight hundred thirty-seven million, one hundred forty-two thousand, two hundred eight".