102154273640457 has 8 divisors (see below), whose sum is σ = 136205810796384. Its totient is φ = 68102792789088.

The previous prime is 102154273640437. The next prime is 102154273640477. The reversal of 102154273640457 is 754046372451201.

It is an interprime number because it is at equal distance from previous prime (102154273640437) and next prime (102154273640477).

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

It is not a de Polignac number, because 102154273640457 - 2³² = 102149978673161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102154273640437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9643308 + ... + 17242445.

It is an arithmetic number, because the mean of its divisors is an integer number (17025726349548).

Almost surely, 2^{102154273640457} is an apocalyptic number.

It is an amenable number.

102154273640457 is a deficient number, since it is larger than the sum of its proper divisors (34051537155927).

102154273640457 is a wasteful number, since it uses less digits than its factorization.

102154273640457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28152279.

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 102154273640457 in words is "one hundred two trillion, one hundred fifty-four billion, two hundred seventy-three million, six hundred forty thousand, four hundred fifty-seven".