64925812403 has 2 divisors, whose sum is σ = 64925812404. Its totient is φ = 64925812402.

The previous prime is 64925812397. The next prime is 64925812409. The reversal of 64925812403 is 30421852946.

It is a balanced prime because it is at equal distance from previous prime (64925812397) and next prime (64925812409).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64925812403 is a prime.

It is a super-2 number, since 2×64925812403² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64925812409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32462906201 + 32462906202.

It is an arithmetic number, because the mean of its divisors is an integer number (32462906202).

Almost surely, 2^64925812403 is an apocalyptic number.

64925812403 is a deficient number, since it is larger than the sum of its proper divisors (1).

64925812403 is an equidigital number, since it uses as much as digits as its factorization.

64925812403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 64925812403 in words is "sixty-four billion, nine hundred twenty-five million, eight hundred twelve thousand, four hundred three".