651949687141 has 16 divisors (see below), whose sum is σ = 658973486080. Its totient is φ = 644963446080.

The previous prime is 651949687093. The next prime is 651949687153. The reversal of 651949687141 is 141786949156.

It is a cyclic number.

It is not a de Polignac number, because 651949687141 - 2³⁷ = 514510733669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 651949687141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651949687171) 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, 46089916 + ... + 46104058.

It is an arithmetic number, because the mean of its divisors is an integer number (41185842880).

Almost surely, 2^651949687141 is an apocalyptic number.

It is an amenable number.

651949687141 is a deficient number, since it is larger than the sum of its proper divisors (7023798939).

651949687141 is a wasteful number, since it uses less digits than its factorization.

651949687141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15436.

The product of its digits is 13063680, while the sum is 61.

The spelling of 651949687141 in words is "six hundred fifty-one billion, nine hundred forty-nine million, six hundred eighty-seven thousand, one hundred forty-one".