1921674072422 has 16 divisors (see below), whose sum is σ = 3104332175952. Its totient is φ = 886900939680.

The previous prime is 1921674072359. The next prime is 1921674072427. The reversal of 1921674072422 is 2242704761291.

It is a super-3 number, since 3×1921674072422³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1921674072427) 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, 129593 + ... + 1964724.

It is an arithmetic number, because the mean of its divisors is an integer number (194020760997).

Almost surely, 2^{1921674072422} is an apocalyptic number.

1921674072422 is a deficient number, since it is larger than the sum of its proper divisors (1182658103530).

1921674072422 is a wasteful number, since it uses less digits than its factorization.

1921674072422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129623.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 1921674072422 in words is "one trillion, nine hundred twenty-one billion, six hundred seventy-four million, seventy-two thousand, four hundred twenty-two".