4561406420451 has 16 divisors (see below), whose sum is σ = 6402112147200. Its totient is φ = 2880826064928.

The previous prime is 4561406420401. The next prime is 4561406420477. The reversal of 4561406420451 is 1540246041654.

It is a happy number.

It is not a de Polignac number, because 4561406420451 - 2¹³ = 4561406412259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4561406420401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1874770 + ... + 3554936.

It is an arithmetic number, because the mean of its divisors is an integer number (400132009200).

Almost surely, 2^{4561406420451} is an apocalyptic number.

4561406420451 is a deficient number, since it is larger than the sum of its proper divisors (1840705726749).

4561406420451 is a wasteful number, since it uses less digits than its factorization.

4561406420451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727818.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 4561406420451 in words is "four trillion, five hundred sixty-one billion, four hundred six million, four hundred twenty thousand, four hundred fifty-one".