145455609578397 has 32 divisors (see below), whose sum is σ = 216861037747200. Its totient is φ = 86181139323648.

The previous prime is 145455609578387. The next prime is 145455609578399. The reversal of 145455609578397 is 793875906554541.

It is not a de Polignac number, because 145455609578397 - 2¹¹ = 145455609576349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145455609578399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244179697 + ... + 244774662.

It is an arithmetic number, because the mean of its divisors is an integer number (6776907429600).

Almost surely, 2^{145455609578397} is an apocalyptic number.

145455609578397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

145455609578397 is a deficient number, since it is larger than the sum of its proper divisors (71405428168803).

145455609578397 is a wasteful number, since it uses less digits than its factorization.

145455609578397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488954705.

The product of its (nonzero) digits is 5715360000, while the sum is 78.

The spelling of 145455609578397 in words is "one hundred forty-five trillion, four hundred fifty-five billion, six hundred nine million, five hundred seventy-eight thousand, three hundred ninety-seven".