64030621144 has 16 divisors (see below), whose sum is σ = 137208474000. Its totient is φ = 27441694752.

The previous prime is 64030621141. The next prime is 64030621153. The reversal of 64030621144 is 44112603046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64030621141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571701919 + ... + 571702030.

It is an arithmetic number, because the mean of its divisors is an integer number (8575529625).

Almost surely, 2^64030621144 is an apocalyptic number.

It is an amenable number.

64030621144 is an abundant number, since it is smaller than the sum of its proper divisors (73177852856).

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

64030621144 is a wasteful number, since it uses less digits than its factorization.

64030621144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143403962 (or 1143403958 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 64030621144 in words is "sixty-four billion, thirty million, six hundred twenty-one thousand, one hundred forty-four".