1824405997890 has 64 divisors (see below), whose sum is σ = 5267457930240. Its totient is φ = 395059343040.

The previous prime is 1824405997847. The next prime is 1824405997903. The reversal of 1824405997890 is 987995044281.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228618316 + ... + 228626295.

It is an arithmetic number, because the mean of its divisors is an integer number (82304030160).

Almost surely, 2^{1824405997890} is an apocalyptic number.

1824405997890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1824405997890 is an abundant number, since it is smaller than the sum of its proper divisors (3443051932350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1824405997890 is a wasteful number, since it uses less digits than its factorization.

1824405997890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457244647.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 1824405997890 in words is "one trillion, eight hundred twenty-four billion, four hundred five million, nine hundred ninety-seven thousand, eight hundred ninety".