102019074626454 has 16 divisors (see below), whose sum is σ = 205595692378560. Its totient is φ = 33746767687880.

The previous prime is 102019074626453. The next prime is 102019074626461. The reversal of 102019074626454 is 454626470910201.

It is a super-2 number, since 2×102019074626454² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102019074626397 and 102019074626406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102019074626453) 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, 64897629384 + ... + 64897630955.

It is an arithmetic number, because the mean of its divisors is an integer number (12849730773660).

Almost surely, 2^{102019074626454} is an apocalyptic number.

102019074626454 is an abundant number, since it is smaller than the sum of its proper divisors (103576617752106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102019074626454 is a wasteful number, since it uses less digits than its factorization.

102019074626454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129795260475.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 102019074626454 in words is "one hundred two trillion, nineteen billion, seventy-four million, six hundred twenty-six thousand, four hundred fifty-four".