2043435404451 has 32 divisors (see below), whose sum is σ = 3117394022400. Its totient is φ = 1166332806144.

The previous prime is 2043435404399. The next prime is 2043435404473. The reversal of 2043435404451 is 1544045343402.

It is not a de Polignac number, because 2043435404451 - 2⁷ = 2043435404323 is a prime.

It is a super-2 number, since 2×2043435404451² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2043435404051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67094875 + ... + 67125323.

It is an arithmetic number, because the mean of its divisors is an integer number (97418563200).

Almost surely, 2^{2043435404451} is an apocalyptic number.

2043435404451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2043435404451 is a deficient number, since it is larger than the sum of its proper divisors (1073958617949).

2043435404451 is a wasteful number, since it uses less digits than its factorization.

2043435404451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34035.

The product of its (nonzero) digits is 460800, while the sum is 39.

The spelling of 2043435404451 in words is "two trillion, forty-three billion, four hundred thirty-five million, four hundred four thousand, four hundred fifty-one".