1672895557402 has 4 divisors (see below), whose sum is σ = 2509343336106. Its totient is φ = 836447778700.

The previous prime is 1672895557369. The next prime is 1672895557447. The reversal of 1672895557402 is 2047555982761.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 905030671561 + 767864885841 = 951331^2 + 876279^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418223889349 + ... + 418223889352.

Almost surely, 2^{1672895557402} is an apocalyptic number.

1672895557402 is a deficient number, since it is larger than the sum of its proper divisors (836447778704).

1672895557402 is an equidigital number, since it uses as much as digits as its factorization.

1672895557402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836447778703.

The product of its (nonzero) digits is 42336000, while the sum is 61.

The spelling of 1672895557402 in words is "one trillion, six hundred seventy-two billion, eight hundred ninety-five million, five hundred fifty-seven thousand, four hundred two".