649019431412 has 24 divisors (see below), whose sum is σ = 1239893497920. Its totient is φ = 294804927360.

The previous prime is 649019431399. The next prime is 649019431433. The reversal of 649019431412 is 214134910946.

It is a happy number.

649019431412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 5033237 + ... + 5160572.

It is an arithmetic number, because the mean of its divisors is an integer number (51662229080).

Almost surely, 2^649019431412 is an apocalyptic number.

It is an amenable number.

649019431412 is a deficient number, since it is larger than the sum of its proper divisors (590874066508).

649019431412 is a wasteful number, since it uses less digits than its factorization.

649019431412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10195271 (or 10195269 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 649019431412 in words is "six hundred forty-nine billion, nineteen million, four hundred thirty-one thousand, four hundred twelve".