1912545941040 has 120 divisors (see below), whose sum is σ = 7340533488288. Its totient is φ = 437153356800.

The previous prime is 1912545940961. The next prime is 1912545941081. The reversal of 1912545941040 is 401495452191.

1912545941040 is a `hidden beast` number, since 1 + 9 + 1 + 2 + 5 + 4 + 594 + 10 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189731661 + ... + 189741740.

Almost surely, 2^{1912545941040} is an apocalyptic number.

1912545941040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1912545941040 is an abundant number, since it is smaller than the sum of its proper divisors (5427987547248).

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

1912545941040 is a wasteful number, since it uses less digits than its factorization.

1912545941040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379473427 (or 379473418 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 1912545941040 in words is "one trillion, nine hundred twelve billion, five hundred forty-five million, nine hundred forty-one thousand, forty".