1971263470 has 16 divisors (see below), whose sum is σ = 3870844848. Its totient is φ = 716823040.

The previous prime is 1971263447. The next prime is 1971263513. The reversal of 1971263470 is 743621791.

It is a congruent number.

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, 8960179 + ... + 8960398.

It is an arithmetic number, because the mean of its divisors is an integer number (241927803).

Almost surely, 2^1971263470 is an apocalyptic number.

1971263470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1971263470 is a deficient number, since it is larger than the sum of its proper divisors (1899581378).

1971263470 is a wasteful number, since it uses less digits than its factorization.

1971263470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17920595.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1971263470 is about 44398.9129371430. The cubic root of 1971263470 is about 1253.8576230157.

The spelling of 1971263470 in words is "one billion, nine hundred seventy-one million, two hundred sixty-three thousand, four hundred seventy".