1671712842 has 16 divisors (see below), whose sum is σ = 3344048640. Its totient is φ = 557133792.

The previous prime is 1671712837. The next prime is 1671712843. The reversal of 1671712842 is 2482171761.

It is a super-2 number, since 2×1671712842² = 5589247652215433928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1671712842.

It is not an unprimeable number, because it can be changed into a prime (1671712843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13558 + ... + 59390.

It is an arithmetic number, because the mean of its divisors is an integer number (209003040).

Almost surely, 2^1671712842 is an apocalyptic number.

1671712842 is an abundant number, since it is smaller than the sum of its proper divisors (1672335798).

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

1671712842 is a wasteful number, since it uses less digits than its factorization.

1671712842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51917.

The product of its digits is 37632, while the sum is 39.

The square root of 1671712842 is about 40886.5851105225. The cubic root of 1671712842 is about 1186.8264763767.

The spelling of 1671712842 in words is "one billion, six hundred seventy-one million, seven hundred twelve thousand, eight hundred forty-two".