1945099908678 has 32 divisors (see below), whose sum is σ = 3894351592320. Its totient is φ = 647674959680.

The previous prime is 1945099908677. The next prime is 1945099908709. The reversal of 1945099908678 is 8768099905491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945099908677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29283901 + ... + 29350247.

It is an arithmetic number, because the mean of its divisors is an integer number (121698487260).

Almost surely, 2^{1945099908678} is an apocalyptic number.

1945099908678 is an abundant number, since it is smaller than the sum of its proper divisors (1949251683642).

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

1945099908678 is a wasteful number, since it uses less digits than its factorization.

1945099908678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71492.

The product of its (nonzero) digits is 352719360, while the sum is 75.

The spelling of 1945099908678 in words is "one trillion, nine hundred forty-five billion, ninety-nine million, nine hundred eight thousand, six hundred seventy-eight".