4978695227401 has 27 divisors (see below), whose sum is σ = 6054734642061. Its totient is φ = 4081617083544.

The previous prime is 4978695227371. The next prime is 4978695227411. The reversal of 4978695227401 is 1047225968794.

The square root of 4978695227401 is 2231299.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 4978695227401 - 2⁷ = 4978695227273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4978695227411) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 359232210 + ... + 359246068.

Almost surely, 2^{4978695227401} is an apocalyptic number.

4978695227401 is the 2231299-th square number.

4978695227401 is the 1115650-th centered octagonal number.

It is an amenable number.

4978695227401 is a deficient number, since it is larger than the sum of its proper divisors (1076039414660).

4978695227401 is an frugal number, since it uses more digits than its factorization.

4978695227401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27778 (or 13889 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 64.

Multiplying 4978695227401 by its sum of digits (64), we get a square (318636494553664 = 17850392²).

The spelling of 4978695227401 in words is "four trillion, nine hundred seventy-eight billion, six hundred ninety-five million, two hundred twenty-seven thousand, four hundred one".