195428939700 has 36 divisors (see below), whose sum is σ = 565441066400. Its totient is φ = 52114383840.

The previous prime is 195428939681. The next prime is 195428939701. The reversal of 195428939700 is 7939824591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195428939701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325714600 + ... + 325715199.

Almost surely, 2^195428939700 is an apocalyptic number.

195428939700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195428939700 is an abundant number, since it is smaller than the sum of its proper divisors (370012126700).

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

195428939700 is a wasteful number, since it uses less digits than its factorization.

195428939700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651429816 (or 651429809 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 195428939700 in words is "one hundred ninety-five billion, four hundred twenty-eight million, nine hundred thirty-nine thousand, seven hundred".