64061642470 has 64 divisors (see below), whose sum is σ = 140771074176. Its totient is φ = 20489011200.

The previous prime is 64061642461. The next prime is 64061642471. The reversal of 64061642470 is 7424616046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64061642471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103731 + ... + 372670.

It is an arithmetic number, because the mean of its divisors is an integer number (2199548034).

Almost surely, 2^64061642470 is an apocalyptic number.

64061642470 is an abundant number, since it is smaller than the sum of its proper divisors (76709431706).

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

64061642470 is a wasteful number, since it uses less digits than its factorization.

64061642470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476545.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 64061642470 in words is "sixty-four billion, sixty-one million, six hundred forty-two thousand, four hundred seventy".