98040971578 has 16 divisors (see below), whose sum is σ = 160440489504. Its totient is φ = 44561353360.

The previous prime is 98040971573. The next prime is 98040971629. The reversal of 98040971578 is 87517904089.

It is a super-2 number, since 2×98040971578² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98040971573) 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, 257001 + ... + 511987.

It is an arithmetic number, because the mean of its divisors is an integer number (10027530594).

Almost surely, 2^98040971578 is an apocalyptic number.

98040971578 is a deficient number, since it is larger than the sum of its proper divisors (62399517926).

98040971578 is a wasteful number, since it uses less digits than its factorization.

98040971578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272477.

The product of its (nonzero) digits is 5080320, while the sum is 58.

The spelling of 98040971578 in words is "ninety-eight billion, forty million, nine hundred seventy-one thousand, five hundred seventy-eight".