102861053547 has 8 divisors (see below), whose sum is σ = 156740653056. Its totient is φ = 58777744872.

The previous prime is 102861053539. The next prime is 102861053557. The reversal of 102861053547 is 745350168201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102861053547 - 2³ = 102861053539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102861053499 and 102861053508.

It is not an unprimeable number, because it can be changed into a prime (102861053557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449072683 + ... + 2449072724.

It is an arithmetic number, because the mean of its divisors is an integer number (19592581632).

Almost surely, 2^102861053547 is an apocalyptic number.

102861053547 is a deficient number, since it is larger than the sum of its proper divisors (53879599509).

102861053547 is an equidigital number, since it uses as much as digits as its factorization.

102861053547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898145417.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 102861053547 in words is "one hundred two billion, eight hundred sixty-one million, fifty-three thousand, five hundred forty-seven".