64402604514413 has 4 divisors (see below), whose sum is σ = 70257386743008. Its totient is φ = 58547822285820.

The previous prime is 64402604514371. The next prime is 64402604514427. The reversal of 64402604514413 is 31441540620446.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64402604514413 - 2¹⁶ = 64402604448877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64402604514713) 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, 2927391114281 + ... + 2927391114302.

It is an arithmetic number, because the mean of its divisors is an integer number (17564346685752).

Almost surely, 2^{64402604514413} is an apocalyptic number.

It is an amenable number.

64402604514413 is a deficient number, since it is larger than the sum of its proper divisors (5854782228595).

64402604514413 is a wasteful number, since it uses less digits than its factorization.

64402604514413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854782228594.

The product of its (nonzero) digits is 1105920, while the sum is 44.

The spelling of 64402604514413 in words is "sixty-four trillion, four hundred two billion, six hundred four million, five hundred fourteen thousand, four hundred thirteen".