4378520900977 has 4 divisors (see below), whose sum is σ = 4378637939200. Its totient is φ = 4378403862756.

The previous prime is 4378520900969. The next prime is 4378520900981. The reversal of 4378520900977 is 7790090258734.

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 4378520900977 - 2³ = 4378520900969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4376520900977) 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, 58462977 + ... + 58537822.

It is an arithmetic number, because the mean of its divisors is an integer number (1094659484800).

Almost surely, 2^{4378520900977} is an apocalyptic number.

It is an amenable number.

4378520900977 is a deficient number, since it is larger than the sum of its proper divisors (117038223).

4378520900977 is a wasteful number, since it uses less digits than its factorization.

4378520900977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117038222.

The product of its (nonzero) digits is 26671680, while the sum is 61.

The spelling of 4378520900977 in words is "four trillion, three hundred seventy-eight billion, five hundred twenty million, nine hundred thousand, nine hundred seventy-seven".