1902243640934 has 64 divisors (see below), whose sum is σ = 3680252319744. Its totient is φ = 716727280896.

The previous prime is 1902243640919. The next prime is 1902243640943. The reversal of 1902243640934 is 4390463422091.

It is a Curzon number.

It is a congruent number.

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, 167 + ... + 1950509.

It is an arithmetic number, because the mean of its divisors is an integer number (57503942496).

Almost surely, 2^{1902243640934} is an apocalyptic number.

1902243640934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1902243640934 is a deficient number, since it is larger than the sum of its proper divisors (1778008678810).

1902243640934 is a wasteful number, since it uses less digits than its factorization.

1902243640934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950621.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 1902243640934 in words is "one trillion, nine hundred two billion, two hundred forty-three million, six hundred forty thousand, nine hundred thirty-four".