123690380494 has 32 divisors (see below), whose sum is σ = 204609715200. Its totient is φ = 55853867520.

The previous prime is 123690380479. The next prime is 123690380507. The reversal of 123690380494 is 494083096321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704659 + ... + 862510.

It is an arithmetic number, because the mean of its divisors is an integer number (6394053600).

Almost surely, 2^123690380494 is an apocalyptic number.

123690380494 is a deficient number, since it is larger than the sum of its proper divisors (80919334706).

123690380494 is a wasteful number, since it uses less digits than its factorization.

123690380494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567288.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 123690380494 in words is "one hundred twenty-three billion, six hundred ninety million, three hundred eighty thousand, four hundred ninety-four".