4908378051961 has 4 divisors (see below), whose sum is σ = 4911770159872. Its totient is φ = 4904985944052.

The previous prime is 4908378051949. The next prime is 4908378051971. The reversal of 4908378051961 is 1691508738094.

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 4908378051961 - 2²⁷ = 4908243834233 is a prime.

It is a super-2 number, since 2×4908378051961² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4908378051961.

It is not an unprimeable number, because it can be changed into a prime (4908378051911) 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, 1696051785 + ... + 1696054678.

It is an arithmetic number, because the mean of its divisors is an integer number (1227942539968).

Almost surely, 2^{4908378051961} is an apocalyptic number.

It is an amenable number.

4908378051961 is a deficient number, since it is larger than the sum of its proper divisors (3392107911).

4908378051961 is a wasteful number, since it uses less digits than its factorization.

4908378051961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392107910.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 4908378051961 in words is "four trillion, nine hundred eight billion, three hundred seventy-eight million, fifty-one thousand, nine hundred sixty-one".