21437130567454 has 16 divisors (see below), whose sum is σ = 38683543881600. Its totient is φ = 8703797373144.

The previous prime is 21437130567449. The next prime is 21437130567509. The reversal of 21437130567454 is 45476503173412.

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, 40295357944 + ... + 40295358475.

It is an arithmetic number, because the mean of its divisors is an integer number (2417721492600).

Almost surely, 2^{21437130567454} is an apocalyptic number.

21437130567454 is a deficient number, since it is larger than the sum of its proper divisors (17246413314146).

21437130567454 is a wasteful number, since it uses less digits than its factorization.

21437130567454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80590716447.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 21437130567454 in words is "twenty-one trillion, four hundred thirty-seven billion, one hundred thirty million, five hundred sixty-seven thousand, four hundred fifty-four".