649129254054 has 16 divisors (see below), whose sum is σ = 1298376162048. Its totient is φ = 216356809032.

The previous prime is 649129254031. The next prime is 649129254061. The reversal of 649129254054 is 450452921946.

649129254054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 649129253988 and 649129254006.

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, 4830442 + ... + 4963005.

It is an arithmetic number, because the mean of its divisors is an integer number (81148510128).

Almost surely, 2^649129254054 is an apocalyptic number.

649129254054 is an abundant number, since it is smaller than the sum of its proper divisors (649246907994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649129254054 is a wasteful number, since it uses less digits than its factorization.

649129254054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9804499.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 649129254054 in words is "six hundred forty-nine billion, one hundred twenty-nine million, two hundred fifty-four thousand, fifty-four".