102357545247 has 24 divisors (see below), whose sum is σ = 151371828608. Its totient is φ = 66614562000.

The previous prime is 102357545243. The next prime is 102357545261. The reversal of 102357545247 is 742545753201.

102357545247 is a `hidden beast` number, since 1 + 0 + 2 + 357 + 54 + 5 + 247 = 666.

It is not a de Polignac number, because 102357545247 - 2² = 102357545243 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102357545243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636372 + ... + 780822.

Almost surely, 2^102357545247 is an apocalyptic number.

102357545247 is a deficient number, since it is larger than the sum of its proper divisors (49014283361).

102357545247 is a wasteful number, since it uses less digits than its factorization.

102357545247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146331 (or 146328 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The spelling of 102357545247 in words is "one hundred two billion, three hundred fifty-seven million, five hundred forty-five thousand, two hundred forty-seven".