649087715005 has 16 divisors (see below), whose sum is σ = 808960400640. Its totient is φ = 499607929792.

The previous prime is 649087714991. The next prime is 649087715011. The reversal of 649087715005 is 500517780946.

It is a cyclic number.

It is not a de Polignac number, because 649087715005 - 2¹⁵ = 649087682237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23393554 + ... + 23421283.

It is an arithmetic number, because the mean of its divisors is an integer number (50560025040).

Almost surely, 2^649087715005 is an apocalyptic number.

It is an amenable number.

649087715005 is a deficient number, since it is larger than the sum of its proper divisors (159872685635).

649087715005 is a wasteful number, since it uses less digits than its factorization.

649087715005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46814948.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 649087715005 in words is "six hundred forty-nine billion, eighty-seven million, seven hundred fifteen thousand, five".