5451971214557 has 16 divisors (see below), whose sum is σ = 6247091327232. Its totient is φ = 4660933052160.

The previous prime is 5451971214553. The next prime is 5451971214559. The reversal of 5451971214557 is 7554121791545.

It is not a de Polignac number, because 5451971214557 - 2² = 5451971214553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451971214553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3683723 + ... + 4947095.

It is an arithmetic number, because the mean of its divisors is an integer number (390443207952).

Almost surely, 2^{5451971214557} is an apocalyptic number.

It is an amenable number.

5451971214557 is a deficient number, since it is larger than the sum of its proper divisors (795120112675).

5451971214557 is a wasteful number, since it uses less digits than its factorization.

5451971214557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264988.

The product of its digits is 8820000, while the sum is 56.

The spelling of 5451971214557 in words is "five trillion, four hundred fifty-one billion, nine hundred seventy-one million, two hundred fourteen thousand, five hundred fifty-seven".