1623404991932 has 24 divisors (see below), whose sum is σ = 2858190360816. Its totient is φ = 806781835008.

The previous prime is 1623404991863. The next prime is 1623404991953. The reversal of 1623404991932 is 2391994043261.

It is a congruent 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, 2123828 + ... + 2785220.

It is an arithmetic number, because the mean of its divisors is an integer number (119091265034).

Almost surely, 2^{1623404991932} is an apocalyptic number.

It is an amenable number.

1623404991932 is a deficient number, since it is larger than the sum of its proper divisors (1234785368884).

1623404991932 is a wasteful number, since it uses less digits than its factorization.

1623404991932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665117 (or 665115 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 1623404991932 in words is "one trillion, six hundred twenty-three billion, four hundred four million, nine hundred ninety-one thousand, nine hundred thirty-two".