1971712498 has 32 divisors (see below), whose sum is σ = 3583641600. Its totient is φ = 794770704.

The previous prime is 1971712489. The next prime is 1971712531. The reversal of 1971712498 is 8942171791.

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, 10311 + ... + 63637.

It is an arithmetic number, because the mean of its divisors is an integer number (111988800).

Almost surely, 2^1971712498 is an apocalyptic number.

1971712498 is a deficient number, since it is larger than the sum of its proper divisors (1611929102).

1971712498 is a wasteful number, since it uses less digits than its factorization.

1971712498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53494.

The product of its digits is 254016, while the sum is 49.

The square root of 1971712498 is about 44403.9693946386. The cubic root of 1971712498 is about 1253.9528199026.

The spelling of 1971712498 in words is "one billion, nine hundred seventy-one million, seven hundred twelve thousand, four hundred ninety-eight".