1969919982 has 48 divisors (see below), whose sum is σ = 4525204320. Its totient is φ = 617197056.

The previous prime is 1969919971. The next prime is 1969919983. The reversal of 1969919982 is 2899199691.

It is a super-3 number, since 3×1969919982³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969919983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252898 + ... + 260570.

It is an arithmetic number, because the mean of its divisors is an integer number (94275090).

Almost surely, 2^1969919982 is an apocalyptic number.

1969919982 is an abundant number, since it is smaller than the sum of its proper divisors (2555284338).

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

1969919982 is a wasteful number, since it uses less digits than its factorization.

1969919982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8537 (or 8534 counting only the distinct ones).

The product of its digits is 5668704, while the sum is 63.

The square root of 1969919982 is about 44383.7806185999. The cubic root of 1969919982 is about 1253.5727083686.

The spelling of 1969919982 in words is "one billion, nine hundred sixty-nine million, nine hundred nineteen thousand, nine hundred eighty-two".