1965098500 has 24 divisors (see below), whose sum is σ = 4291776216. Its totient is φ = 786039200.

The previous prime is 1965098491. The next prime is 1965098537. The reversal of 1965098500 is 58905691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 445969924 + 1519128576 = 21118^2 + 38976^2 .

It is a super-2 number, since 2×1965098500² = 7723224229404500000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964599 + ... + 1965598.

It is an arithmetic number, because the mean of its divisors is an integer number (178824009).

Almost surely, 2^1965098500 is an apocalyptic number.

1965098500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1965098500 is an abundant number, since it is smaller than the sum of its proper divisors (2326677716).

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

1965098500 is a wasteful number, since it uses less digits than its factorization.

1965098500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930216 (or 3930204 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 1965098500 is about 44329.4315325608. The cubic root of 1965098500 is about 1252.5491446222.

The spelling of 1965098500 in words is "one billion, nine hundred sixty-five million, ninety-eight thousand, five hundred".