1674521640938 has 16 divisors (see below), whose sum is σ = 2522779623936. Its totient is φ = 833601341040.

The previous prime is 1674521640919. The next prime is 1674521640947. The reversal of 1674521640938 is 8390461254761.

It is a happy number.

It is a Curzon 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, 1022981 + ... + 2096552.

It is an arithmetic number, because the mean of its divisors is an integer number (157673726496).

It is a 1-persistent number, because it is pandigital, but 2⋅1674521640938 = 3349043281876 is not.

Almost surely, 2^{1674521640938} is an apocalyptic number.

1674521640938 is a deficient number, since it is larger than the sum of its proper divisors (848257982998).

1674521640938 is a wasteful number, since it uses less digits than its factorization.

1674521640938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120709.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 1674521640938 in words is "one trillion, six hundred seventy-four billion, five hundred twenty-one million, six hundred forty thousand, nine hundred thirty-eight".