102402137540734 has 16 divisors (see below), whose sum is σ = 153812554252560. Its totient is φ = 51131287471680.

The previous prime is 102402137540719. The next prime is 102402137540849. The reversal of 102402137540734 is 437045731204201.

It is a super-2 number, since 2×102402137540734² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187008424 + ... + 187555204.

It is an arithmetic number, because the mean of its divisors is an integer number (9613284640785).

Almost surely, 2^{102402137540734} is an apocalyptic number.

102402137540734 is a deficient number, since it is larger than the sum of its proper divisors (51410416711826).

102402137540734 is a wasteful number, since it uses less digits than its factorization.

102402137540734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674235.

The product of its (nonzero) digits is 564480, while the sum is 43.

Adding to 102402137540734 its reverse (437045731204201), we get a palindrome (539447868744935).

The spelling of 102402137540734 in words is "one hundred two trillion, four hundred two billion, one hundred thirty-seven million, five hundred forty thousand, seven hundred thirty-four".