19101920200010 has 32 divisors (see below), whose sum is σ = 34535068543440. Its totient is φ = 7607079318528.

The previous prime is 19101920199959. The next prime is 19101920200037. The reversal of 19101920200010 is 1000202910191.

It can be written as a sum of positive squares in 8 ways, for example, as 1732722036241 + 17369198163769 = 1316329^2 + 4167637^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57939794 + ... + 58268546.

Almost surely, 2^{19101920200010} is an apocalyptic number.

19101920200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19101920200010 is a deficient number, since it is larger than the sum of its proper divisors (15433148343430).

19101920200010 is a wasteful number, since it uses less digits than its factorization.

19101920200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354362.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 19101920200010 in words is "nineteen trillion, one hundred one billion, nine hundred twenty million, two hundred thousand, ten".