1351644544642 has 64 divisors (see below), whose sum is σ = 2481774287616. Its totient is φ = 538919331840.

The previous prime is 1351644544637. The next prime is 1351644544721. The reversal of 1351644544642 is 2464454461531.

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, 11579892 + ... + 11696032.

It is an arithmetic number, because the mean of its divisors is an integer number (38777723244).

Almost surely, 2^{1351644544642} is an apocalyptic number.

1351644544642 is a deficient number, since it is larger than the sum of its proper divisors (1130129742974).

1351644544642 is a wasteful number, since it uses less digits than its factorization.

1351644544642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116731.

The product of its digits is 5529600, while the sum is 49.

The spelling of 1351644544642 in words is "one trillion, three hundred fifty-one billion, six hundred forty-four million, five hundred forty-four thousand, six hundred forty-two".