20251214013977 has 2 divisors, whose sum is σ = 20251214013978. Its totient is φ = 20251214013976.

The previous prime is 20251214013889. The next prime is 20251214014069. The reversal of 20251214013977 is 77931041215202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17015493000256 + 3235721013721 = 4124984^2 + 1798811^2 .

It is a cyclic number.

It is not a de Polignac number, because 20251214013977 - 2¹⁴ = 20251213997593 is a prime.

It is a super-2 number, since 2×20251214013977² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20251214013077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125607006988 + 10125607006989.

It is an arithmetic number, because the mean of its divisors is an integer number (10125607006989).

Almost surely, 2^{20251214013977} is an apocalyptic number.

It is an amenable number.

20251214013977 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251214013977 is an equidigital number, since it uses as much as digits as its factorization.

20251214013977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 20251214013977 in words is "twenty trillion, two hundred fifty-one billion, two hundred fourteen million, thirteen thousand, nine hundred seventy-seven".