64734528835450 has 24 divisors (see below), whose sum is σ = 120692224204380. Its totient is φ = 25832306035200.

The previous prime is 64734528835447. The next prime is 64734528835489. The reversal of 64734528835450 is 5453882543746.

It can be written as a sum of positive squares in 6 ways, for example, as 3817799458561 + 60916729376889 = 1953919^2 + 7804917^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1537616215 + ... + 1537658314.

Almost surely, 2^{64734528835450} is an apocalyptic number.

64734528835450 is a deficient number, since it is larger than the sum of its proper divisors (55957695368930).

64734528835450 is a wasteful number, since it uses less digits than its factorization.

64734528835450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075274962 (or 3075274957 counting only the distinct ones).

The product of its (nonzero) digits is 387072000, while the sum is 64.

The spelling of 64734528835450 in words is "sixty-four trillion, seven hundred thirty-four billion, five hundred twenty-eight million, eight hundred thirty-five thousand, four hundred fifty".