921375490354 has 12 divisors (see below), whose sum is σ = 1519127358462. Its totient is φ = 418807040960.

The previous prime is 921375490351. The next prime is 921375490379. The reversal of 921375490354 is 453094573129.

It can be written as a sum of positive squares in only one way, i.e., 626271225129 + 295104265225 = 791373^2 + 543235^2 .

It is not an unprimeable number, because it can be changed into a prime (921375490351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1903668127 + ... + 1903668610.

Almost surely, 2^921375490354 is an apocalyptic number.

921375490354 is a deficient number, since it is larger than the sum of its proper divisors (597751868108).

921375490354 is a wasteful number, since it uses less digits than its factorization.

921375490354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807336761 (or 3807336750 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 921375490354 in words is "nine hundred twenty-one billion, three hundred seventy-five million, four hundred ninety thousand, three hundred fifty-four".